Does the positive correlation between infrastructure and productivity reflect causation? If so, in which direction? The author finds that, when growth in roads (the largest component of infrastructure) changes, productivity growth changes disproportionately in U.S. industries with more vehicles....

Electricity and water are often subsidized in developing countries to increase their affordability for low-income households. Ideally, such subsidies would create sufficient demand in poor neighborhoods to encourage private investment in their infrastructure. Instead, many regions receiving...

In this paper we investigate how telecommunications infrastructure affects economic growth. We use evidence from 21 OECD countries over a 20-year period to examine the impacts that telecommunications developments may have had. We jointly estimate a micromodel for telecommunication investment...

During the last three decades government debt has increased in most developed countries. During the same period we have also observed a significant liberalization of international financial markets. We propose a multi-country model with incomplete markets and show that governments may choose...

According to standard macroeconomic models, the zero lower bound greatly reduces the effectiveness of monetary policy and increases the efficacy of fiscal policy. However, private-sector decisions depend on the entire path of expected future short-term interest rates, not just the current...

Do mandatory spending programs such as Medicare improve efficiency? We analyze a model with two parties allocating a fixed budget to a public good and private transfers each period over an infinite horizon. We compare two institutions that differ in whether public good spending is discretionary...

This paper examines the role for tax policies in productivity-shock driven economies with catching-up-with-the-Joneses utility functions. The optimal tax policy is shown to affect the economy countercyclically via procyclical taxes, i.e., "cooling down" the economy with higher taxes when it is...

This paper develops a theory of inequality and the social contract aiming to explain how countries with similar economic and political "fundamentals" can sustain such different systems of social insurance, fiscal redistribution, and education finance as those, of the United States and Western...

When the zero lower bound on nominal interest rates binds, monetary policy cannot provide appropriate stimulus. We show that, in the standard New Keynesian model, tax policy can deliver such stimulus at no cost and in a time-consistent manner. There is no need to use inefficient policies such as...