Lyra

Since several students asked about my dog, here is a picture of Lyra

Since this blog is supposedly about economics, here is a link to wagaroo a non-profit that helps match people in need of pets with pets in need of people. It was founded by University of Mary Washington econ alum Christine Exley, who went on to earn her Ph.D. at Stanford and is now a professor at Harvard Business School. Here is an interview that Frank Conway did with Christine at Economic Rockstar.

Here is the Fredericksburg SPCA, which is where Lyra came from.

The History of the History of Sears and Jim Crow

After the announcement that Sears had filed for bankruptcy Louis Hyman put out tweet thread about Sears role undermining Jim Crow in the South. The thread got thousands of likes and the story was picked up by The Chicago Tribune, The New York Times, The Washington Post, NPR, and Vox. I have posted a copy of the tweet thread below.

The thread argues that Sears catalogs helped to undermine Jim Crow. To preserve racial control, Southern store owners tried to keep African Americans in the South from using Sears, but Sears responded to this opposition. Sears not only acted to undermine Jim Crow it did so intentionally.  

Scott Cunnigham raised an interesting question to economic historians on twitter about how one might try to estimate the effect of the Sears catalog. So far as I know, no one has yet done that, but Elizabeth Ruth Perlman and Steven Sprick Schuster may be taking a stab at it (see here).

In addition, to the quantitative significance of the catalog, I wondered what sources the story was based upon. The story seems plausible, but what evidence is it based on? Like most people, Hyman doesn’t provide references for his tweets. The video also does not state the sources for the story, and it did not appear to be included in the American Capitalism Reader that he and Baptist put together. I tweeted a reply asking him about it, but it must have been one of the thousands of responses to the thread. 

Although I do not know for certain what source or sources Hyman used, Grace Elizabeth Hale told a similar in her Making Whiteness: The Culture of Segregation in the South, 1890-1940 (1999). Here are excerpts from pages  and  of Making Whiteness.

The story is essentially the same. There is, however one noticeable difference between the two stories in Hale’s version, even though she is writing a book about race, she says that store owners refuse to sell to people who had not paid their accounts. In Hyman's version store owners refuse to sell to people because they are black. In the first, store owners are opposing a competitor regardless of who the customer is. In the second, the refusal is based on race. It is suggested, based upon the statement from the catalog about giving letters and money to the mail carrier, that Sears responded to these actions by the store owners. But the full quote from the catalog was "IF YOU LIVE ON A RURAL MAIL ROUTE, just give the letter and the money to the mail carrier.." The all caps is in the original. The instructions were repeated in Swedish and German.

Not only is the story in Hyman and Hale the same, much of the wording is the same. Both contain the quotes: "just give the letter and the money to the mail carrier and he will get the money order at the post office and mail it in the letter for you" and “these fellows could not afford to show their faces as retailers.” It seems reasonable to infer that either Hale was Hyman's primary source or they both drew from the same sources.

Hale sources are provided in two footnotes.

The first footnote is for the statements that rural storekeepers refused to sell stamps or money orders to some customers who owed on their accounts and the statement from the Sears Catalog about giving the money to your mail carrier. Thomas Clark states that : "Sometimes a customer was brought under control by the merchants refusal to order goods until he had paid his bill (page 73)."  Clark was a prominent historian, but his The Southern Country Store does not provide citations. The other sources in that footnote refer to the catalog statement about giving money to the mail carrier. It is not clear, however, that Sears was trying to counter the actions of store owners rather than simply informing rural residents throughout the country that they could take advantage of rural free delivery and did not actually have to make a trip to the post office.

The  other footnote cites three sources in support of the statements about rumors that Sears was black and the burning of catalogs: Stuart Ewen and Elizabeth Ewen Channels of Desire: Mass Images and the Shaping of American Consciousness published in 1982, Robert Hendrickson The Grand Emporiums: The Illustrated History of America’s Great Department Stores published in 1979, and Gordon L. Weil Sears Roebuck USA: The Great American Catalog Store and How it Grew published in 1977.

Ewen and Ewen say pretty much the same thing that Hale and Hyman did

Ewen and Ewen do not mention the refusal to sell stamps and money orders, but they do have the stories about rumors that Sears and Montgomery Ward were black, including the quote about "these fellows." They also do not cite Hendrickson and Weil.

Hendrickson also tells of rumors about race and catalog burning, but does not mention refusals to sell stamps or money orders:

Weil also describes the opposition of small retailers and their use of racial rumors.

So far the trail of citations has led us to Weil, who largely says the same things that Ewen and Ewen did, but we can see that the quote about "these fellows" not showing their faces isn't actually evidence; it was just Weil’s interpretation.

What sources did Hendrickson and Weil base their interpretations on? Good question. Neither Hendrickson or Weil is an academic history. There are no notes or references. Weil does, however, mention in his introduction that Catalogues and Counters: A History of Sears Roebuck and Company by Boris Emmet and John E. Jeuck was useful. (Seeing it listed on Amazon for $246 makes me feel fortunate to have picked up a copy at the library book sale for $2). 

Emmet and Jeuck also tell the stories about rumors that Sears and Roebuck were black, and the story about small town merchants burning catalogs. Emmet and Jeuck were academics and their massive volume is heavily footnoted. The footnote in regard to the rumors about Sears and Roebuck being black cites an unpublished manuscript on the company's history written by Alvah Roebuck, suggesting that he remembered hearing such rumors as late as the 1930s. The footnotes about catalog burning and other opposition from small town merchants cites page 105 of Asher and Heal Send No Money Asher was a former Sears executive. Like the books by Weil and Hendrickson it does not cite sources. Page 105 does state that "George Milburn, in his book entitled "Catalogue," reveals the whole history of the home dealer's campaign against the mail order houses." George Milburn's Catalogue was a satirical novel about the the effects of the wish book on a small Oklahoma town.

I believe that I have now arrived at the end of the line. The claim about store owners refusing to sell stamps or money orders to blacks does not seem to appear in the previous literature. The claim that store owners refused to provide services to people whose accounts were not up to date appears to rest on Clark's statement in The Southern Country Store, which he does not provide any sources to support. Sears definitely told people they could give their money directly to postal carriers, but I did not find any evidence that they did this because of opposition from country store owners as opposed to just trying to make things easier for their customers. The claim about rumors that Sears and Roebuck were black appears to ultimately rest on the recollection of Roebuck in an unpublished manuscript. I wasn't able to trace the rumor about Ward past Weil and  Hendrickson. The claims about catalog burning appear to be based on a novel.

The bottom line of all this is that we know very little about the impact of Sears in the South or other rural areas, and consequently we no little about its ability to undermine some of the results of Jim Crow. It is quite plausible that Sears provided large benefits like those suggested by Hyman, but we don’t know. It is possible that store owners spread rumors about race, but we have only Roebuck's recollection to that effect. It is possible that they organized catalog burnings, but we do not know. It is possible that some of Sears actions were attempts to counter racism, but we don’t know. 

Hyman’s tweet thread shouldn’t serve as a call to debate whether or not Sears was an example of the positive aspects of capitalism. It should be a call to historians to go out and actually find out what Sears did.

Accounting for Slavery

I got around to reading Caitlin Rosenthal’s Accounting for Slavery: Masters and Management. Rosenthal does not need me to sing her praises. Plenty of people will be doing that. I’m just doing it because I feel like it.

I do want to warn people that they should ignore some of the press for the book that suggests it is about how slavery inspired modern management. Rosenthal explicitly states that the book is not about the origins of modern management. She draws parallels with modern management practices, but she does not argue that they can be traced back to slavery.

I use the phrase management practices because the subtitle is more accurate than the title: the book is about much more than accounting. Rosenthal examines the techniques that slave holders developed to track productivity, record experiments, organize the flow of information up and down hierarchies, calculate the value of their investments, etc. She shows how these techniques were systematically disseminated through the publication of books with standardized forms, articles in periodicals, and what were essentially how-to manuals on plantation management.  She makes the case that an understanding of the degree to which slave owners developed sophisticated management practices that parallel those in modern management adds to our understanding of both business history and the history of slavery. In telling the story she also makes clear that she would like to bridge the divide that currently exists between some economist economic historians and some historian economic historians. If anyone has a chance of doing that it might be someone who had Sven Beckert and Claudia Goldin as dissertation advisers.

Early in the book Rosenthal introduces an organizational chart for a large sugar plantation, and she describes the parallel between the way she created the chart and the way that Alfred Chandler created organizational charts to demonstrate the development of management practices at large industrial firms. The parallel with Chandler can be extended. Chandler argued that management is an important element of technology. Institutions and developments in production technology in the United States created possibilities to profit from mass production, but to take advantage of these opportunities business people had to develop the techniques to manage these large business enterprises. Rosenthal shows that institutions (slavery) and technology (such as the cotton gin) created opportunities to profit from large scale agricultural production, but to take advantage of these opportunities business people had to develop techniques to manage these large agricultural enterprises.

No book is perfect. I think she slightly exaggerates the neglect of slavery by business historians. For instance, Blaszczyk and Scranton’s Major Problems in American Business History gives as many pages to business in the slaves south as it does to technology in the age of big business. Nevertheless, her overall point that the business of slavery has been treated as distinct from the main story is accurate. She also gives too much credit to Edward Baptist, though she at least relegates this to a footnote. I’ll write a separate post about why I disagree with her assessment of Baptist.  For now, I want to emphasize that I think this is an important book.

Finally, I want to note that it is one of the most well written books I have read in a while. If you are looking for a historian who wants to try to impress you with academic jargon or simply show you how many five dollar words they know, this is not the book for you. On the other hand, if you want to see what it looks like when an author strives to make complicated things as clear as possible you should take a look at this book.

If I were betting on future winners of the Hagley Prize for the best book in business history, I would put my money on Accounting for Slavery.

Accounting for Capitalism

I read Michael Zakim’s new book Accounting for Capitalism: The world the clerks made last week. I saw Tyler Cowen’s brief review on Marginal Revolution, and Cowen included the following excerpt from the book

A single block fronting Wall Street in 1850 was thus home to seventeen separate banking firms, as well as fifty-seven law offices, twenty-one brokerage houses, eleven insurance companies, and an assortment of notaries, agents, importers, commission merchants, and, of course, stationers.  A rental market for office “suites” developed apace “fitted up with gas and every other convenience,” which also included newly invented “acoustic tubes” that allowed managing partners to communicate with porters in the basement and clerks in the salesroom without ever having to leave their desks…

All this office activity spurred a flurry of technological spillovers that included single standing desks and double-counter desks, sitting desks featuring nine or, alternately, fifteen pigeonholes, and drawers that could or could not be locked.  “Office chairs capable of swiveling and tilting became available as well, together with less costly “counting house stools” that lacked any upholstery.  Paperweights, check cutters, pen wipers (the woolen variety being preferable to silk or cotton, which tended to leave fibers on the nib), pencil sharpeners, rulers, copying brushes, dampening bowls, blotting paper (less important for absorbing excess ink than for protecting the page from soiled hands), wastepaper baskets, sealing wax (including small sticks coated with a combustible material ignited by friction and designed to be discarded after a single use), seal presses, paper fasteners, letter clips (for holding checks while entering them into the daybook), writing pads, billhead and envelope cases, business cards, receiving boxes for papers and letters, various trays (for storing pins, wafers, pencils, and pens), and “counting room calendars” spanning twelve- or sixteen-month cycles — all became standard business tools.  So did the expanding inventory of “square inkstands,” “library inkstands,” and “banker inkstands” designed with narrow necks which prevented evaporation and shallow bodies that kept the upper part of the pen from becoming covered in ink, thus avoiding blackened fingers and smudged documents.

He then added that “There is then a whole other paragraph about the different kinds of paper that developed and their importance for clerical work.  This is perhaps the most thorough book I know on the importance of “small” innovations, and it is also a useful book on the history of accounting.”

The impact of small technological changes and the history of accounting, however, are not the central concerns of the book. Zakim’s book is more about the subtitle “the world the clerks made.” It is business history, but it is more on the cultural history part of the business history spectrum than the technological, accounting, or economic history parts of the business history spectrum. Zakim is not trying to explain changes in technology or accounting, their spread, or their impact, or even changes in the number of clerks and the functions they served. Instead, he is interested in the changes in thepeople perceived the economy and their place in it. Those are interesting questions, nevertheless, I found the book frustrating.

Capital and capitalism are words that have multiple definitions, but Zakim doesn’t define how he is using them, and their meaning is not made clear by the context. Often the use does not seem consistent with any of the common uses of the terms.

Here are some of Zakim’s statements about capitalism:

“Anyone could become a capitalist, Americans were told, a possibility that acted as a “spur to exertion to the very news boys in our streets,” as did the popular intelligence that the great majority of the country’s businessmen had “commenced life behind a desk or the counter.” This did not mean, however, that everyone actually became a capitalist, It did mean, however, that everyone became capital---or what we so casually refer to as “human capital” today---rendering their own lives the subject of utility and enterprise.” (Zakim page 7)

“The individual became an asset worthy of the highest credit rating in a cash fraternity born of the axioms of purchasability and personhood. He became human capital.” (Zakim page 70)

“This perpetuum mobile of life under capital---of dialectics at a standstill”---continues to induce bouts of chronic fatigue and irritable bowels, panicked concerns with one’s diet fed by a vast catechism of self help literature, and the body mass ratios of exercise routines including performances of manual labor at the local cross fit gym. Surely too, the treadmill desks of today are worthy successors to Dr. Halsted’s equestrian exercise chair of 1846. Both mediate between our humanity and the exigencies of the market, seeking to ameliorate the fraught relationship between “Mammon and Man” that proves to be the common denominator of capitalism’s reinvention of itself.” (Zakim page 194)

“Pen and paper already engendered such a virtual reality, which was the condition for capitals transmigrations from place to place, and form to form, passing between its merchant, industrial and financial incarnations, and then back again, imbuing the human imagination with the same values of fungibility. The history of capitalism is not, then, about the economic origins of society, but about the expressions that economy assumes in society, about how capital acquired consciousness.” Economists call this process “cognitive regulatory capture.” (Zakim page 197)

Capital and capitalism appear frequently, but Zakim does not say what he thinks those words mean, and it is not clear how his use fits with common uses of the terms. Within economics capital is often used to mean two different things. The most frequent use is as a factor of production. Undergraduate students are taught that output is a function of land, labor, capital and technology. In this context capital is anything that has been produced to enable more production in the future. It includes factories, office buildings, and equipment. It also includes things like roads, bridges, and ports. In addition, it includes knowledge and skills that people have obtained that enable them to be more productive, which is referred to as human capital. I’m pretty sure Zakim’s use of “human capital” is not the same as economists.  Capital is also used, especially in discussions of finance and banking, to refer to the stake of the owners of a business. For instance, after the last financial crisis there was a lot of discussion about increasing capital requirements at banks to discourage excessive risk taking and provide a cushion in case some loans or investments go bad.The Marxist view of capital, as best I recall, is distinct from but related to both of these definitions of capital. I can't tell you what capital is for Zakim, only that it is important.

The book alternates between the sort of concrete descriptions that Cowen highlighted and the less concrete statements about capitalism, like those I have included here. Consequently, I found the book interesting but somewhat frustrating. It is not clear to me what it means to say that “capital acquired consciousness.” I don’t think it is what economists call cognitive regulatory capture, but it may be similar to it.

If you are interested in learning about the evolution of information technology and its impact of business and the economy I would suggest that you might take a look at JoAnne Yates Control Through Communication: The Rise of System in American Management , Margaret Levenstein Accounting for Growth: Information Systems and the Creation of the Large Corporation, or Josh Lauer Creditworthy: A History of Consumer Surveillance and Financial Identity in America. You may also find some of the chapters in Daniel Raff and Phil Scranton (editors) The Emergence of Routines: Entrepreneurship, Organization and Business History interesting as well.

Henry Clay, Edward Baptist, and the Whipping Machine

Along with the term “pushing system” that Baptist invented and attributed to slaves and his fictional estimate of the economic impact of slave produced cotton, the “whipping machine” has been one of the most frequently cited stories from The Half Has Never Been Told. Foner, for instance, explained in his New York Times review “Each slave was assigned a daily picking quota, which increased steadily over time. Baptist, who feels that historians too often employ circumlocutions that obscure the horrors of slavery, prefers to call it “the ‘whipping-machine’ system.” I saw it mentioned again recently and decided to look at the actual slave narrative that Baptist refers to. By this time I should not have been surprised at what I found. Nevertheless, I was.

Here is Baptist’s description

Henry Clay seems to be an almost perfect representative for Baptist’s claims about slaves being moved to the cotton frontier of the Southwest, where owners invented new ways to drive them harder.

Henry Clay’s slave narrative is in WPA Oklahoma Slave Narratives. Here are the parts relevant to Baptist’s interpretation.

In both versions Clay is born in North Carolina and then sold and moved to Louisiana, and both include Clay’s description of a whipping machine. But the whipping machine did not drive him to pick cotton faster in Louisiana because it was not in Louisiana and he did not pick cotton in Louisiana. In Clay’s narrative, the whipping machine was owned by his original master in North Carolina, and Clay claims that he did not use it. According to Clay threats were common on the North Carolina plantation but whipping was not. When his new master took him to Louisiana he first cleared land and then was rented to a ship captain. Eventually, he was taken to Oklahoma when he was inherited by the son of the man that took him to Louisiana. Did the whipping machine actually exist? Baptist suggests not. He thinks Clay was using it as a metaphorical argument that  "every cotton labor camp cleared out of the southwestern woods used torture as its central technology." Well, I don't think he was doing that since he placed it in North Carolina. Moreover, I don't see anything in the narrative suggesting that he was interested in making metaphorical arguments. If I had to choose between real and metaphorical I would probably go with real. The description is very specific and it is plausible. It sounds like a large spinning wheel with straps attached to the wheel. I have no guess as to whether it would have been functional or used. In the absence of corroborating evidence it is difficult to assess. The lack of corroborating evidence suggests that if it existed it was rare, if not unique.

The bottom line is that Henry Clay's story about the whipping machine is not the one that Baptist tells. One has to wonder at his point if there anything in the book that is faithful to the sources that it is supposedly based on? The case of the whipping machine reinforces the fact that criticism of Baptist has nothing to do with different methods of historians and economists; it has everything to do with Baptist's failure to meet the standards by which historians have traditionally evaluated each others work.

That's Just Econ 101 Part 2

The other day I said that when someone says something is just Econ 101 you can be confident it is probably not Econ 101. I have a couple more examples now. Simon Johnson writes about Saving Capitalism from Economics 101. He writes that

All across the United States, students are settling into college – and coming to grips with “Econ 101.” This introductory course is typically taught with a broadly reassuring message: if markets are allowed to work, good outcomes – such as productivity growth, increasing wages, and generally shared prosperity – will surely follow.

Unfortunately, as my co-author James Kwak points out in his recent book, Economism: Bad Economics and the Rise of Inequality, Econ 101 is so far from being the whole story that it could actually be considered misleading – at least as a guide to sensible policymaking. Markets can be good, but they are also profoundly susceptible to abusive practices, including by prominent private-sector people. This is not a theoretical concern; it is central to our current policy debates, including important new US legislation that has just been put forward.

One core problem is that market incentives reward self-interested private behavior, without accounting for social benefits or costs. We generally overlook our actions’ spillover effects on others, or “externalities.” To be fair, Econ 101 textbooks do discuss this issue in some contexts, such as pollution, and it is widely accepted that environmental damage needs to be regulated if we are to have clean air, clean water, and limits on other pollutants.

Unfortunately, “widely accepted” does not include by President Donald Trump’s administration, which is busy rolling back environmental protections across a broad range of activities. The New York Times counts 76 rollbacks in progress. The thinking behind this policy is straight out of the first few weeks of Econ 101: get out of the way of the market. As a result, there is a lot more pollution – including more emission of greenhouse gases – in America’s future.

What’s wrong with this?

1.       It is not what is taught in introductory econ courses. I do not know of any textbook that makes the case that if markets are allowed to work good things will surely follow. Mankiw is one of the more politically conservative econ textbook authors. One of his ten principles is that markets are usually a good way to organize economic activity, but it is followed immediately by the principle that government can sometimes improve market outcomes. The one chapter on perfect competition is followed by three chapters on monopoly, oligopoly and monopolistic competition. There are chapters on externalities, public goods and discrimination. If Mankiw isn’t teaching Ayn Randian libertarianism, who is? Stiglitz? Krugman? I don’t think so.

2.       He then notes that this description of ECON 101 isn’t actually Econ 101. Economists do tell students about things like externalities. And that the need for government regulation to protect the environment is “widely accepted.”

3.       If it is not what is taught in Econ 101 what is it? Turns out that it is the views of the Trump administration.

4.       Then Johnson immediately switches back to blaming Econ 101. His argument seems to be “This is what you learn in Econ 101. Okay, its not actually what you learn in Econ 101, but I’m going to keep blaming Econ 101 anyway. His coauthor Kwak uses the same approach in his book.

5.       Blaming the Trump administrations economic policies on Econ 101 is about as accurate as blaming his foreign policy on Introduction to International Affairs courses.

At least this video on Economic Man versus Humanity: a puppet rap battle has cool puppets. I like puppets. Right now, I’m looking at the four marionettes from Prague that hang in my home office.  Her rap, however, is terrible. Oh good lord the verse she makes. It gives a chap the bellyache. She presents one of the most inaccurate interpretations of economic assumptions: that economists assume that people should only care about money and things. You can gain satisfaction from whatever you want: fancy cars, giving to charity, or baking great bread. There is nothing in economics that says you should be making money instead of playing music music, as the puppets apparently want to do. If you enjoy playing music, you should probably play music, but, like any other choice, playing music has a cost.  You must give up something else you could have done with that time and money. Economists don’t say what you should want to do; they just say that, other things equal, if the benefits of doing something goes up people will tend to do it more and if the costs go up people will tend to do it less. And the stuff in the video about the planet being here for our use. That’s not economics. That’s the weird fundamentalism of Ronald Reagan’s secretary of the interior James G. Watt.

People who want to improve economic education need to start with real economics. Not these silly straw man Econ 101s. As I’ve said before, economics needs better critics.

Productive and Unproductive Error

The list of new working papers this morning from nep-his contained one by Richard Langlois, “The Fisher Body Case and Organizational Economics”, which examines the case of Fisher Body. Mary and I also examined the case in our paper “The historian’s craft and economics,” This blog post is both a concurring and dissenting opinion on the Langlois paper.

Fisher Body was an early manufacturer of automobile bodies that merged with General Motors in the 1920s. Both our paper and Langlois paper are, however, less about the story of the merger than they are about the story about the story. The story about the story begins when Klein, Crawford and Alchian published a paper in 1978 that used Fisher Body as an example of vertical integration driven by the holdup problem arising from asset specificity. For non-economists the terms may be unfamiliar, but the intuition is straightforward. The relationship between the automobile manufacturer and the manufacturer of bodies will be most profitable if they make investments that are fitted to each other. For example, the assembly plants are close to the body plants, or the body plants are designed to produce the sort of bodies the automobile company uses. In other words, you have assets, factory and equipment that are specific to a particular use and much less valuable in alternative uses. Hold up is the idea that once such investments have been made one side can try to exploit the other. “We are going to lower the price we pay for your automobile bodies, and you will have to accept it because no one else is going to buy those bodies that are designed for our cars.” That is a really simplified version, but you should get the idea.

In 1988, Klein described this explanation for the merger

“Fisher effectively held up General Motors by adopting a relatively inefficient, highly labor-intensive technology and by refusing to locate body-producing plants adjacent to general Motors assembly plant” (Klein, 1988: 202).

In 1988, Coase began to question this explanation, and he and several other researchers presented considerable evidence that the sort of holdup described by Klein never took place and that the merger was motivated by other concerns. Klein and Coase argued back and forth, and several other people jumped in. Ultimately Klein acknowledged that the hold up he described never took place.

Both Coase and Hansen and Hansen present the case as an example of economists’ failure to give sufficient attention to empirical evidence. Langlois on the other hand sees the entire episode as an example of the process of developing economic knowledge. Here is the conclusion of his paper

I agree with the overall thrust of Langlois argument but disagree with his specific case. I think there are numerous examples of cases where economists have developed explanations that turned out to be incorrect but were important because they generated debates and stimulated research that led to better understanding.

For instance, Doug North’s explanation for economic development in the antebellum period prompted research into agricultural production in the South and industrial development in the North that overturned his explanation and led to a better understanding of antebellum development. I think a similar thing is going on with Pomeranz’s work on the Great Divergence. Academics should not be criticized just for being wrong, especially if it leads to research that improves our understanding of something. 

So what is the difference between North and Pomeranz, on the one hand, and Klein et al, on the other. First, Klein et al simply use Fisher Body to provide a little color to the theory. Their primary objective is not to understand the history of Fisher Body and GM. The work of North and Pomeranz on the other hand was driven by the desire to understand history. Second, North and Pomeranz based their theories on the available evidence, and some of their claims were later challenged by new and better evidence. The initial claim of Klein et al was not based upon the available evidence. There was already evidence in support of a contrary claim and no evidence in support of their claim that Fisher held-up GM. Finally, the responses to North and Pomeranz took us beyond where we were before they wrote. In contrast, the responses to Klein et al largely took us back to where we were before. According to Langlois

The use of Fisher by Klein et al is an example of trying to cram history into a theory rather than using theory to understand history. When I was studying economic history at the LSE in the early ‘80s I became increasingly interested in the use of economic theory in economic history. My advisor, Geoff Jones, told me that theory could be very useful but that I had to be careful not to try to make a historical story fit into a theory. Theory might help guide the search for evidence, but you have to go where the evidence leads you even if that doesn’t fit your theory. And you must tell the story honestly.  Although I went on to get a Ph. D. in economics rather than history, I have always tried to keep Geoff’s advice as a guiding principle. I think Klein et al would have been less likely to follow the path they did if they had been driven by a desire to understand Fisher Body.

That's Just Econ 101

The other day my wife and I were talking about how people like to use phrases like “that’s just Econ 101”. Unfortunately, statements that precede that phrase are almost never Econ 101. It’s just whatever the person happens to think. I said that fairy tales should be re-written to include the phrase. “If you don’t make the shoes, elves will do it at night. That’s just Econ 101.” "He spins straw into gold. That's just Econ 101."

Bill Gates provided support for the claim that people to tend to say things about basic economic theory that are not part of economic theory.

He says that it costs as much to build the 1,000^th unit as it cost to produce the 10^th. Economists call the additional cost of producing another unit of a good marginal cost. What he is describing is constant marginal cost. The problem is that he drew an upward sloping supply curve. An upward sloping supply curve means that higher and higher prices are required to get suppliers to provide additional units of the good. Why are higher and higher prices required? Because of increasing marginal cost. Gates description of constant marginal cost is thus inconsistent with his graph. This is actually a small problem because Gates could have just as well said that economists assume increasing marginal cost when drawing typical supply and demand curves.

His real point seems to be that there are now many goods for which there are large startup costs and near zero marginal costs. That is how he describes software production. He suggests that this is a new development that arises from the intangible nature of goods like software.

It is not actually a new situation, it does not arise from the product being intangible, and undergraduate economic textbooks have models of this situation.  There are many examples of products for which there are very large start up costs and relatively small (near zero) constant marginal cost. Railroads are not new, and they are not intangible, but they required large expenditures on construction and, once built, the additional cost of another passenger or another bushel of wheat was practically zero.  Insurance is intangible, but it is not obvious that it can be produced at zero marginal cost.

This is a graph from McCloskey’s Applied Theory of Price, which, by the way, is available to you at the amazingly low cost of your time to download it.

Gates concern that the rules have not kept up with the changes in the economy is also not new. People said the same thing in the late nineteenth century with the rise of railroads and other big businesses with high start up costs and low marginal costs. 

Gates does not address the demand side but these are generally firms that have some degree of market power. They face a downward sloping demand like the firm in the graph. Because other people do not regard other goods as perfect substitutes the firm won't lose all of its customers if it raises its price. The more the firm can convince people that other goods are not close substitutes for its good the greater its ability to raise its price above marginal cost. I some ways the more important thing is whether it can keep other companies from offering close substitutes. In other words, can it create what economists call barriers to entry. You can have a great idea, but if you can't keep other people from copying it you are not going to make great profits.

In short,

1. If you want to charge a price that is greater than marginal cost you need to convince people that other goods are not close substitutes for yours. Think of the old Porsche slogan: "Porsche. There is no substitute."

2. If you want to make more than an average rate of profit you need to keep other people from copying you, that is introducing substitutes for your good (or you need to keep coming up with new things that don't have close substitutes).

Those two ideas actually are Econ 101.