Greg Mankiw's Blog: Follow-up references
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Higher tax rates significantly contribute to lower work effort in Western Europe compared to the US, according to economic analyses.
Greg Mankiw footnotes his recent NYT op-ed, "...economists disagree about the how far the tax-based explanation goes. A reasonable reading of the literature is that lower labor effort and incomes in Europe are likely due to a combination of higher tax rates, stronger unions, and greater regulations......we find that the divorce and tax mechanisms together can explain 45% of the variation in labor supply between the United States and the European countries."......Europeans today work much less than Americans because of the policies of the unions in the 1970s, 1980s, and part of the 1990s and because of labor market regulations. Marginal tax rates may have also played a role......Based on our reading of the micro evidence, we recommend calibrating macro models to match Hicksian elasticities of 0.3 on the intensive and 0.25 on the extensive margin and Frisch elasticities of 0.5 on the intensive and 0.25 on the extensive margin. Hence, it would be reasonable to calibrate representative agent macro models to match a Frisch elasticity of aggregate hours of 0.75. These elasticities are consistent with the observed differences in aggregate hours across countries with different tax systems..."
Follow-up references
In my most recent Times column, I did not have the space to fully explain the body of work that follows up on the Prescott hypothesis that higher tax rates explain lower work effort and national incomes in Western Europe. For interested readers (that is, the more nerdy ones), here are a some relevant references together with brief excerpts (emphasis added):
1. Steven Davis and Magnus Henrekson
"Lastly, let us return to the recent studies by Prescott (2002, 2003), which consider the output, employment and welfare consequences of personal taxes in an equilibrium model with one production sector and a simple labor-leisure choice for the representative household. Our evidence supports the view that tax rate differences among rich countries are a major reason for large international differences in market work time. At the same time, however, our evidence strongly suggests that labor and consumption taxes operate with powerful effect on several margins: substitution between legal and underground activity, substitution between home and market production, the mix of market production activity, and the composition of market expenditures."
2. Indraneel Chakraborty et al.
"Americans work more than Europeans. Using micro-data from the United States and 17 European countries, we document that women are typically the largest contributors to the cross-country differences in work hours. We also show that there is a negative relation between taxes and annual hours worked, driven by men, and a positive relation between divorce rates and annual hours worked, driven by women. In a calibrated life-cycle model with heterogeneous agents, marriage and divorce, we find that the divorce and tax mechanisms together can explain 45% of the variation in labor supply between the United States and the European countries."
3. Alberto Alesina et al.
"Our punch line is that Europeans today work much less than Americans because of the policies of the unions in the 1970s, 1980s, and part of the 1990s and because of labor market regulations. Marginal tax rates may have also played a role, especially for women's labor force participation, but our view is that in a hypothetical competitive labor market without unions and with limited regulation, these tax increases would not have affected hours worked as much. Certainly micro evidence on the elasticity of labor supply is inconsistent with a mainly tax-based explanation of this phenomenon, even though social multiplier effects may help in this respect."
4. Raj Chetty et. al.
"Based on our reading of the micro evidence, we recommend calibrating macro models to match Hicksian elasticities of 0.3 on the intensive and 0.25 on the extensive margin and Frisch elasticities of 0.5 on the intensive and 0.25 on the extensive margin. Hence, it would be reasonable to calibrate representative agent macro models to match a Frisch elasticity of aggregate hours of 0.75. These elasticities are consistent with the observed differences in aggregate hours across countries with different tax systems."
As I noted in my column, economists disagree about the how far the tax-based explanation goes. A reasonable reading of the literature is that lower labor effort and incomes in Europe are likely due to a combination of higher tax rates, stronger unions, and greater regulations.
Greg Mankiw, “Follow Up References,” Greg Mankiw’s Blog, September 22, 2021, http://gregmankiw.blogspot.com/2021/09/follow-up-references.html




Ed Comment: “Ben tell me what it means in practical/everyday terms? From my reading of the literature, nobody seems to have a clue about the long-term effects from higher taxes, notwithstanding the fact that they stupidly count buying healthcare from the government as taxes. What we care about is the gradual effects of people taking the risks necessary to slowly build the institutions that increase the returns to risk-taking. Again, it’s tax rate x the quality of ideas = payoff for risk-taking, which is the bottom line that matters. Without idea-generating institutions, Europe may have many fewer worthy ideas. Taxes don’t discourage investment in bad ideas, only good ideas. Tax effects should be greater in the US than Europe. Resulting growth is also a function of the number of talented people who get the proper training. Properly trained talent is the binding constraint. High payoffs gradually motivate people to undergo the arduous and tedious training necessary to produce things of valuable at the margin. (Water is valuable but not at the margin.) Most all the training is on the job. Working at BMW is not very valuable compared to working at Apple. What ate the elasticities that Mankiw cites measuring?”
Ben Comment: “You’re absolutely right about the long run effects of higher taxes on risk taking. We don’t have any good empirical estimate or evidence. In macro and public finance, economists usually look at the trade off between labor and leisure and think about leisure as “purchased” for the wage - the opportunity cost of that additional hour of labor. This is the elasticity that Mankiw is referring to. The cited Chetty paper discusses the Frisch elasticity of labor which is the elasticity of hours worked to the wage - the percent hours worked changes for a given percent change in the wage. An income tax would be modeled as a reduction in the wage rate, so the economist would use a tax change to estimate how much people’s hours worked also changed. In the PF literature, I believe this is called the elasticity of income with respect to taxes (I’m not 100% sure here because I never took PF). The Chetty paper cites a Frisch elasticity of.75 - a.75% reduction in wages leads to a 1% decrease in hours. The papers Mankiw cites all say part of the reason Euros work less than Americans is that they have higher taxes which makes leisure relatively cheaper than it is in America. Euros and Americans are picking their optimal consumption bundle (goods+services vs leisure) but because of differences in the relative prices of leisure, Euros substitute away from consumption towards leisure. All of this is to say - nothing Mankiw discusses or cites is thinking about taxes in terms of risk-taking or on the job training or anything else. Instead, they are focusing on the labor market effects of tax rises. The actual productivity increases you’re taking about are exogenous in almost all macro models. Romer has some endogenous growth models but, if I remember correctly, they almost never have labor in them at all, beyond the labor/leisure choice discussed by Mankiw.”
Ed Comment: “My take is that the elasticities Mankiw cites underestimate the true effects, escape in America. And I don’t care so much about the 80%. They aren’t really taxed anyway (payments over and above the government service they consume). I care about the 20% or less who pay all the taxes, produce most all of the TFP growth, and underwrite the risks. Segmentation, not averages. “