We study the impact of firm level choices of ICT, R&D, exporting and importing on the evolution of productivity and its bias towards skilled occupations. We use a novel measure of the propensity of a firm to engage in technology investment and adoption: its employment of workers with STEM...

Wages for more- and less-educated workers have followed strikingly different paths in the U.S. and Canada. During the 1980's and 1990's, the ratio of earnings of university graduates to high school graduates increased sharply in the U.S. but fell slightly in Canada. Katz and Murphy (1992) found...

How does international trade affect the popularity of governments and leaders? We provide the first large-scale, systematic evidence that the divide between skilled and unskilled workers worldwide is producing corresponding differences in the response of political preferences to trade shocks....

Labor markets in U.S. cities today are vastly more educated and skill-intensive than they were five decades ago. Yet, urban non-college workers perform substantially less skilled work than decades earlier. This deskilling reflects the joint effects of automation and international trade, which...

A central issue in designing performance incentive contracts is whether to reward the production of outputs versus use of inputs: the former rewards efficiency and innovation in production, while the latter imposes less risk on agents. Agents with varying levels of skill may perform better under...

We investigate how and why the productivity of a worker varies as a function of the productivity of her co-workers in a group production process. In theory, the introduction of a high productivity worker could lower the effort of incumbent workers because of free riding; or it could increase the...

This paper explores the use of structural models as an alternative to reduced form methods when decomposing observed joint trade and technology driven wage changes into components attributable to each source. Conventional mobile factors Heckscher-Ohlin models typically reveal problems of...

This analysis proposes new measures of rent creation or (notional) mark-up and workers' share of rents on cross-country-industry panel data. While the usual measures of mark-up rate implicitly assume perfect labor markets, our approach relaxes this assumption, and takes into account that part of...

This paper uses quasi-experimental variation in payroll taxes to estimate their incidence and investigate how firms use their input factors. We find that higher payroll tax rates lead to large employment responses and have no effects on employee earnings. As payroll taxes increase, firms...

We develop a dynamic political-economic theory of welfare state and immigration policies, featuring three distinct voting groups: skilled workers, unskilled workers, and old retirees. The essence of inter- and intra-generational redistribution of a typical welfare system is captured with a...