The federal government owns and administers 472, 892,659 acres or 21% of the land area of the lower US, making it both the country's largest land owner and among the largest by a central government among western democracies. This condition is surprising, given that the US generally is viewed as...

Forests accompany the cities we build. There are an estimated 5.5 billion urban trees in the United States. Globally, about 25 percent of urban land is covered by tree canopy. This study examines urban forests as a policy tool for air pollution mitigation. We study an afforestation program in...

This paper studies the economic consequences of the West's foray into China after the Opium War (1839-42), when Western colonial influence was introduced in dozens of so-called treaty ports. We document a turnaround during the 19th century in the nature of China's capital markets. Whereas before...

What is the impact on intra-national trade and regional economic outcomes when the quality and lane-capacity of an existing paved road network is expanded significantly? We investigate this question for the case of Turkey, which undertook a large-scale public investment in roads during the...

Why have white, less educated voters left the Democratic Party over the past few decades? Scholars have proposed ethnocentrism, social issues and deindustrialization as potential answers. We highlight the role played by the 1994 North American Free Trade Agreement (NAFTA). In event-study...

The Marshall Plan (1948-1952) was the largest aid transfer in history. This paper estimates its effects on Italy's postwar economic development. It exploits differences between Italian provinces in the value of reconstruction grants they received. Provinces that could modernize more their...

Governments go to great lengths to attract foreign multinationals because they are thought to raise the wages paid to their employees (direct effects) and to improve outcomes at local domestic firms (indirect effects). We construct the first U.S. employer-employee dataset with foreign ownership...

We combined smartphone mobility data with census track-based reports of positive case counts to study a coronavirus outbreak at the University of Wisconsin-Madison campus, where nearly three thousand students had become infected by the end of September 2020. We identified a cluster of twenty...

Does a location's growth benefit or suffer from being geographically close to large economic centers? Spatial proximity may lead to competition and hurt growth, but it may also improve market access and enhance growth. Using data on U.S. counties and metro areas for the period 1840-2017, we...

Soon after beginning operations, the Federal Reserve established a nationwide network for collecting information about the economy. In 1919, the Fed began tabulating data by about retail sales, which it viewed as a fundamental measure of consumption. From 1920 until 1929, the Federal Reserve...