This paper shows that greater global spatial correlation of productivities can increase cross-country welfare dispersion by increasing the correlation between a country's productivity and its gains from trade. We causally validate this prediction using a global climatic phenomenon as a natural...

In a world economy that is highly integrated, most policies produce effects across the border. This is often believed to be an argument for greater global governance, but the logic requires scrutiny. There remains strong revealed demand for policy and institutional diversity among nations,...

There is no country in the world that does not have at least one law or policy dealing with climate change. The most prolific countries have well over 20, and globally there are 1,800 such laws. Some of them are executive orders or policies issued by governments, others are legislative acts...

The paper illustrates how one may assess our comprehensive uncertainty about the various relations in the entire chain from human activity to climate change. Using a modified version of the RICE model of the global economy and climate, we perform Monte Carlo simulations, where full sets of...

Fears that globalization necessarily hurts the environment are not well-founded. A survey reveals little statistical evidence, on average across countries, that openness to international trade undermines national attempts at environmental regulation through a race to the bottom' effect. If...

Over the past two decades, the international community has struggled to deal constructively with the problem of mitigating climate change. This is considered by many to be the preeminent public policy challenge of our time, but actual policy responses have been relatively modest. This essay...

Reductions in greenhouse gas emissions are a global public good, which makes it efficient to act globally when addressing this challenge. We lay out several reasons that high-income countries seeking to mitigate climate change might have greater impact if they invest their resources in...

In a previous analysis of the West African Monetary Union, Macedo(1985a), size is taken to be a major structural characteristic of a country in the sense that large countries are not affected by disturbances originating in small countries but small countries are affected by large countries'...

This paper documents a set of stylized facts about recent trends in cross-border M&A (CBMA) activity around the world. The facts focus on key features of CBMA such as (i) the magnitude; (ii) how it varies across industries and locations; (iii) how it compares to levels of greenfield FDI over time;...

Are country borders still an impediment to trade flows within Europe? Using a rich microlevel survey with 3 million annual shipments of goods by road across 269 European regions, we construct a matrix of bilateral trade flows for 12 industries from 2011 to 2017. We then use the causal inference...