Loukas Karabarbounis

Gender Based Taxation and the Division of Family Chores

Gender-Based Taxation (GBT) satisfies Ramseys rule of optimality because it taxes at a lower rate the more elastic labor supply of women. This holds when different elasticities between men and women are taken as exogenous. We study GBT in a model in which labor supply elasticities emerge endogenously from the bargained allocation of goods and time in the family. We explore the cases of superior bargaining power for men, higher men wages and higher women productivity in home duties. In all cases, men commit to a career in the market and take less home duties than women. As a result, their market work becomes less substitutable to home duty and their labor supply responds less to changes in the market wage. When society can resolve its distributional concerns efficiently with gender-specific lump sum transfers, GBT with higher marginal tax rates on (single and married) men is optimal. In addition, GBT affects the intrafamily bargaining, leading to a more balanced allocation of labor market outcomes across spouses and a smaller gender gap in labor supply elasticities.

One Dollar, One Vote

This paper revisits the relationship between inequality and redistribution in a panel of advanced OECD countries. Using panel data methods that hold constant a variety of determinants of redistributive spending, I find a non-monotonic relationship between pre-tax-and transfer distribution of income and redistribution. Relative to mean income, a more affluent rich and middle class are associated with less redistribution and a richer poor class is associated with more redistribution. These results are consistent with a one dollar, one vote politico-economic equilibrium: When the income of a group of citizens increases, aggregate redistributive policies tilt towards this group’s most preferred policies.

The Cyclicality of the Opportunity Cost of Employment

The flow opportunity cost of moving from unemployment to employment consists of forgone public benefits and the forgone consumption value of nonworking time. We construct a time series of the opportunity cost of employment using detailed microdata and administrative or national accounts data to estimate benefits levels, eligibility, take-up, consumption by labor force status, hours, taxes, and preference parameters. The opportunity cost is procyclical and volatile over the business cycle. The estimated cyclicality implies far less unemployment volatility in leading models of the labor market than that observed in the data, irrespective of the level of the opportunity cost.

Declining Labor Shares and the Global Rise of Corporate Savings

The stability of the labor share is a key foundation in macroeconomic models. We document, however, that the global labor share has significantly declined over the last 30 years. This decline was associated with a significant increase in corporate saving, generally the largest component of national saving. We relate the labor share to corporate saving empirically and theoretically using a model featuring CES production and imperfections in the flow of funds between households and corporations. These two departures from the standard neoclassical model imply that the labor share fluctuates and that corporate saving affects macroeconomic allocations. We argue that it is important to study the labor share and corporate saving jointly, and offer a unified explanation for their trends. A global decline in the cost of capital beginning around 1980 induced firms to shift away from labor and toward capital, financed in part with an increase in corporate saving.

Labor Wedges and Open Economy Puzzles

A parsimonious model with home production, estimated to match moments of the “labor wedge,” explains prominent puzzles of the international business cycle. If market and home activity are substitutes, then the measured labor wedge increases whenever market consumption and employment decrease. Home production breaks the tight negative link between market consumption and its marginal utility and therefore helps explain the international risk sharing puzzle. In an estimated two-country dynamic general equilibrium model in which the labor wedge is endogenously generated to match its empirical moments, market output and market employment are more correlated than market consumption and investment across countries, relative market consumption is negatively related to the real exchange rate and real net exports are countercyclical. Further, the international risk sharing puzzle becomes easier to explain as the degree of financial completeness increases.