Search Results
Working Paper
Are technology improvements contractionary?
Yes. We construct a measure of aggregate technology change, controlling for varying utilization of capital and labor, non- constant returns and imperfect competition, and aggregation effects. On impact, when technology improves, input use and non- residential investment fall sharply. Output changes little. With a lag of several years, inputs and investment return to normal and output rises strongly. We discuss what models could be consistent with this evidence. For example, standard one-sector real-business-cycle models are not, since they generally predict that technology improvements are ...
Working Paper
On the concavity of the consumption function
Conference Paper
The quantitative analysis of the basic neomonetarist model
Working Paper
The Decline of Drudgery and the Paradox of Hard Work
We develop a theory that focuses on the general equilibrium and long-run macroeconomic consequences of trends in job utility. Given secular increases in job utility, work hours per capita can remain approximately constant over time even if the income effect of higher wages on labor supply exceeds the substitution effect. In addition, secular improvements in job utility can be substantial relative to welfare gains from ordinary technological progress. These two implications are connected by an equation flowing from optimal hours choices: improvements in job utility that have a significant ...
Working Paper
Taxation of labor income and the demand for risky assets
It is well known that the implicit insurance provided by labor income taxes can reduce total saving. We show that this insurance can change the composition of saving as well, because the reduction in labor-income risk may affect the amount of financial risk that an individual chooses to bear. Given plausible restrictions on preferences, any change in taxes that reduces an individual's labor-income risk and does not make her worse off will lead her to invest more in risky assets. This effect can be quantitatively important for realistic changes in tax rates.
Working Paper
Are technology improvements contractionary?
We construct a measure of aggregate technology change, controlling for imperfect competition, varying utilization of capital and labor, and aggregation effects. On impact, when technology improves, input use falls sharply, and output may fall slightly. With a lag of several years, inputs return to normal and output rises strongly. These results are inconsistent with frictionless dynamic general equilibrium models, which generally predict that technology improvements are expansionary, with inputs and (especially) output rising immediately. However, the results are consistent with plausible ...