Minimum Wages: Short rejoinder to Geloso

A few days ago I posted here at NOL a short comment on some reaction I’ve seen with regards to Seattle’s minimum wage study. Vincent Geloso offers an insightful criticism of my argument. Even if his point is quite specific (or so it seems to me), it offers an opportunity for some clarification.

But first, what was my argument? My comment was aimed at a specific point raised by advocates of increasing minimum wages. Namely, that even if Seattle’s study shows an increase in unemployment, a study with a larger sample may say otherwise. My point is that the way I’ve seen this criticism raised is missing the economic insight of minimum wage analysis, namely that jobs will be lost in less efficient employers and employees first. So far so good. The problem Geloso points out is with my example. I refer to McDonald’s as the efficient employers fast food chain (think of economics of scale) and as less efficient employers the neighborhood family-run little food place (neighborhood’s diner).

Geloso correctly argues that different employers react in different ways. It is expected, for instance, that a larger employer such as a fast-food chain would have more options to make a marginal adjustment when there is an increase in minimum wages. Of course, I agree, but the point I’m rising is about where jobs will be lost first (not the specific mechanism in each employer). Geloso flips my example and argues that a small diner has more (in relative terms) to lose by letting go one out of two employees than a fast food joint that has to let one employee go among maybe ten thousand. By letting one employee go, the small employer loses a larger share of its output. Therefore a small employer would be more inclined to keep all of his labor force and cut costs on another front (less hours work in average doesn’t cut it, that’s like a shared unemployment that would also cut output down).

A large employer like a fast food chain, however, can let one out of ten thousand employees go because the loss in output is not that significant. I have two issues with this example. The first one is that a fast food chain is facing the increase in minimum wage ten thousand times, not two. To cut even the rise in cost, the firm fast food chain has to cut down its labor force 15% (1,500 employees.) But I think the problem with this example does not end here. If it were the case that small diners don’t cut employment but fast food chains do, then we should see more unemployment in larger employers than in small neighborhood diners.

A second point I want to make is with Geloso’s argument that the study is about focusing “like a laser” on one out of multiple channels in the group most likely to respond in that manner (unemployment?). That the study, as long as the focus is on unemployment, should focus on the less efficient employers (and employees) first, and not just look at the unaffected employers because that’s where we just happen to have better statistics for is my point. There are two options. The first option is that what matters is focusing on the channel the increase in cost will be managed by employers. But this is neither a focus on unemployment nor on the criticism I’m replying to. Option number two, that the study should focus on the employers “most likely” to reduce unemployment, which is actually my point regardless of how many “channels” are included in the sample.

Minimum Wages: Where to Look for Evidence

A recent study on the effect of minimum wages in the city of Seattle has produced some conflicted reactions. As most economists expected, the significant increase in the minimum wage resulted in job losses and bankruptcies. Others, however, doubt the validity of the results given that the sample may be incomplete.

In this post I want to focus just one empirical problem. An incomplete sample in itself may not be a problem. The issue is whether or not the observations missing from the sample are relevant. This problem has been pointed out before as the Russian Roulette Effect, which consists in asking survivors of the increase in minimum wages if the increase in minimum wages have put them out of business. Of course, the answer is no. In regards to Seattle, a concern might be that fast food chains such as McDonald’s are not properly included in the study.

The first reaction is, so what? Why is that a problem? If the issue is to show that an increase of wages above their equilibrium level is going to produce unemployment, all that has to be shown is that this actually happens, not to show where it does not happen. This concern about the Seattle study is missing a key point of the economic analysis of minimum wages. The prediction is that jobs will be lost first among less efficient workers and less efficient employers, not equally across all workers and employers. More efficient employers may be able to absorb a larger share of the wage increase, to cut compensations, delay the lay-offs, etc. This is seen by the fact that demand is downward sloping and that a minimum wage above its equilibrium level “cuts” demand in two. Some employers are below the minimum wage (the less efficient ones) and others are above the minimum wage (the more efficient ones.) Let’s call the former “Uncle’s diner” and the latter “McDonald’s.” This how it is seen in a demand and supply graph:

minimum wage

Surely, there is some overlapping. But the point that this graph is making is that looking at the effects minimum wage above the red line is looking at the wrong place. A study that is looking for the effect on employment needs to be looking at what happens with below the red line. This sample, of course, has less information available than fast food chains such as McDonald’s; this is a reason why some studies focus on what can be seen even if the effect happens in what cannot be seen (and this is a value added of the Seattle study.)

This is why it is important to ask: “what do minimum wage advocates expect to find by increasing the sample size?” To question that minimum wages increase unemployment, then the critics also needs to focus on the “Uncle’s diner” part of the demand curve. If the objective is to inquire about something else, than that has no bearing on the fact that minimum wage increases do produce unemployment in the minimum wage market and at the less efficient (and harder to gather data) portion of it first.

PS: I have a previous post on minimum wages that can be found here.

Minimum wages: The economist as a psychologist

Both Ludwig von Mises and F.A. Hayek are known for arguing that there is no such thing as a good economist who is only an economist. For these two thinkers, a good economist-as-scientist also needs to know history, philosophy of science, ethics, and physics. Mises and Hayek are thinking of what an economist-as-scientist should be familiar with and have some minimum knowledge beyond his discipline.

I would add that the economist as public educator, that is, when the economist talks as an economist to non-economists, also needs some awareness of psychology. I may not be using the term “psychology” in the most proper way, but I mean the awareness to understand what the interlocutor feels and needs and then figure out how to communicate economic insights in a way that will not be automatically (emotionally or psychologically) rejected; how to make someone accept an economics outcome they do not want to be true. How to break the bad news with empathy? This is a challenge I try to get my students to understand as one day they, too, will be economists out of the classroom in the real world.

A few days ago I found myself unexpectedly in the “psychologist” position. Only seconds after meeting for the first time two persons dropped the question: “So, what do you think about increasing the minimum wages, should we do it?” I knew nothing about these two individuals, and the only thing they knew about me was that I’m an economics professor. The answer to such a question is an Econ 101 problem: if you increase the minimum wage (above the equilibrium price) some lucky workers will get a wage increase at the expense of other ones loosing their jobs.

The first question I asked myself was “what do these two nice ladies actually want, the analytical/scientific answer, or do they want instead the ‘professor’ to confirm their bias?” This might be a delicate discussion since they may well have a loved one in the minimum wage market.

The first thing to get out of the way is that my answer as an economist is not ideologically driven or does not respond to secret political agendas. How can that be made clear? One way is to show the economics profession’s consensus on the subject from an impersonal position. I explained to them that any economics textbook from any author from any country in the world used in any university would say the same thing: “If you put the price of labor above its equilibrium (a minimum wage), it will produce a disequilibrium (unemployment). You cannot fix the price outside equilibrium and at the same time remain in equilibrium.” Yes, as Ben Powell reminds us, even Paul Krugman agrees on this. By mentioning a worldwide consensus there is no room for ideological or political agendas. It is important to mention that economics is not always about politics. The economic analysis of minimum wages has nothing to do with being a Democrat or a Republican; the political position of each party may differ, but those are not economic analyses, those are political strategies.

The next step was to deal with the issue that if such a consensus exists, why are there mentions of studies showing no harmful effects of increases in minimum wages. This is no mystery either. A well known reason of why an increase in minimum wages does not increase unemployment is because in fact there is no such increase. The politician may say he is increasing the minimum wage, but he does not say that the minimum wage is being located just above the equilibrium level and therefore he is not doing much. Another reason is to look at the effect of a minimum wage increase in a small location where low skilled workers can get another job in the next town without the need to move and therefore they will not show up as unemployed. This is another case of an ineffective increase in minimum wages. Or maybe the minimum wage increases but a benefit goes down. The total compensation to the employee does not change, its composition does.

But can the economist show his claim? Is there more clear evidence that the effects of increasing minimum wages does do harm than the complicated cases where there are no harmful effects? Again, I went geographically large. First, I compared the U.S. with Europe, which has higher minimum wages with respect to the U.S. In Europe you find higher unemployment rates, higher unemployment in the youth population, and also higher long-term unemployment. Second, I brought the case of the U.S. Fair Labor Standard Act of 1938, which fixed the minimum wage at 25 cents per hour. This law included Puerto Rico where the many workers were earning between 3 to 4 cents. Bankruptcies and unemployment skyrocketed. It was in fact unions who asked Congress to make an exception for Puerto Rico, which took two years to consider. For two years people in Puerto Rico were forced to work in the black market or fail to make a minimum income. Want more cases? See here. “See,” the psychologist says, “minimum wages are very dangerous; you can seriously harm yourself. Is that a bet you really want to make?”

Two issues remain to be explained after dealing with these three problems, (1) objection to minimum wage increases is not (necessary) an ideological or political position, (2) studies that deny the effect are doubtful for easy reasons to understand, and (3) if you look at a sample broad enough the economist’s prediction is right there.

First, when an economist objects to an increase in minimum wages it does not mean we do not want wages to go up. We are just saying that a minimum wage increase is not the right way to do it. I wish it were so easy, but the laws of demand and supply inform otherwise. I guess most economists would advocate for minimum wages if their negative effects were not real. Second, explain Milton Friedman’s lesson that a policy is valued by its results, not by its intentions. The economist objects because of the unintended effects of fixing the price of labor outside equilibrium, not because we wouldn’t like to see real wages increasing.