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There is the long debate on the Frisch-Elasticity being the driver of unemployment over the business cycle.

One argument against the voluntary-unemployment mechanism of RBC models is that if we distinguish two subgroups of the population with different Frisch-elasticities, the one with the higher elasticity should respond stronger to wage fluctuations.

Women have a bigger elasticity than men, yet their employment fluctuates less over the business cycle.

Is there a counterargument to this that salvages the neoclassical model of voluntary unemployment? I'm specifically referring to this argument that builds on heterogeneity in the elasticity, not on the Micro vs Macro estimation discussion.

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2 Answers 2

up vote 4 down vote accepted

I'm not sure that there is any convincing answer, but most answers I've seen take the form "some other form of cyclical heterogeneity offsets the differences in Frisch elasticities across groups".

For instance, the most cyclical industries have historically been construction and durable goods manufacturing, both of which predominantly employ males. (See this BLS report for the effect of industry cyclicality on the gender composition of the labor force in the most recent recession.) If industry effects are strong enough, they may overwhelm males' much lower intertemporal substitutability of labor supply and cause male employment to be more cyclical.

Note that although this explanation sounds plausible at first glance, it raises many other quantitative problems for business cycle models. For instance, the explanation only works if labor supply cannot easily be reallocated across sectors; otherwise the needed reduction in manufacturing and construction employment could take place via men there switching to other sectors, and then women in those sectors exiting employment.

This is reasonable enough: in the short run, labor supply probably isn't too elastic across sectors. But once we acknowledge this fact, the quantitative puzzle of low employment in business cycles becomes much more severe. For instance, if most employees in construction are stuck in construction in the short term (so that it makes sense to think about labor supply elasticities for the construction sector on its own), then the puzzle of how construction employment fell by 30% while real wages actually inched up in the recent recession becomes extremely hard to resolve in any frictionless labor model.

So ultimately, yes, this is very difficult to resolve on its own; the obvious industry-oriented explanation introduces new and even more insurmountable problems.

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There are a couple of good papers on this that I know of.

Keane, Michael and Richard Rogerson, “Micro and Macro Labor Sup- ply Elasticities: A Reassessment of Conventional Wisdom,” Journal of Economic Literature, 2012, 50, 464-476.

"The response of aggregate labor supply to various changes in the economic environment is central to many economic issues, especially the optimal design of tax policies. Conventional wisdom based on studies in the 1980s and 1990s has long held that the analysis of micro data leads one to conclude that aggregate labor supply elasticities are quite small. In this paper we argue that this conventional wisdom does not hold up to empirically reasonable and relevant extensions of simple life cycle models that served as the basis for these conclusions. In particular, we show that several pieces of conventional wisdom fail in the presence of human capital accumulation or labor supply decisions that allow for adjustment along both the extensive and intensive margin. We conclude that previous estimates of small labor supply elasticities based on micro data are fully consistent with large aggregate labor supply elasticities."

Peterman, William B, “Reconciling Micro and Macro Estimates of the Frisch Labor Supply Elasticity: A Sensitivity Analysis,” Technical Report, Federal Reserve Board of Governors 2014.

"Microeconometric estimates of the Frisch labor supply (0 to 0.5) tend to be much lower than the values used by macroeconomists to calibrate general equilibrium models (2-4). This paper explores whether the gap in these ranges can be explained by two restrictions present in the micro Frisch elasticity that are implicitly relaxed in these values of the macro Frisch elasticity. First, the micro estimates focuses only on prime-aged married males who are the head of their household, while the macro values incorporates the whole population. Second, the micro estimates only include fluctuations in hours on the intensive margin, while the macro values also incorporate fluctuations on the extensive margin. Within a consistent microeconometric estimation strategy, this paper estimates a micro Frisch elasticity of 0.2, and, upon relaxing the two restrictions, a macro Frisch elasticity of about 3. The increase in the estimates suggests that these two restrictions can explain the gap. However, given that this paper demonstrates that the estimates of the macro Frisch elasticity are fairly sensitive to the estimation procedure, the sample of agents, and also the margins of fluctuations that are used for estimation one must careful choose the appropriate value for calibration purposes."

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Would you be able to add a few details of what these papers say, so that this answer is useful on its own? See meta.economics.stackexchange.com/questions/53/… for some discussion of this. –  Ganesh Sittampalam Nov 21 at 19:38
These papers (and there's many more of the same kind) go on Micro vs Macro Frisch elasticity, but they don't - to my knowledge - try to explain why the group with a higher Frisch elasticity (women) has a smaller volatility over the business cycle. –  FooBar Nov 22 at 23:28
I would suspect this has something to do with the types of jobs women do versus men, but I'm not familiar with any empirical or theoretical literature that looks at this phenomenon precisely. –  Kerk Phillips Nov 24 at 1:21

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