This paper studies the effect of corporate and personal taxes on innovation in the United States over the 20th century. We use three new datasets: a panel of the universe of inventors who patent since 1920; a dataset of the employment, location, and patents of firms... View Details

The study assembles new data to construct a census of worldwide web server use across the globe. We document a large concentration of investment in the United States, and a wide dispersion across scores of countries. We find tens of billions of dollars of unmeasured... View Details

How does the arrival of a new minority group affect the social acceptance and outcomes of existing minorities? We study this question in the context of the First Great Migration. Between 1915 and 1930, 1.5 million African Americans moved from the U.S. South to Northern... View Details

In recent years, the total spending on hosting the Olympic Games has snowballed. The 2008 Beijing Olympic Games spent $40 billion on infrastructure development, and the 2014 Sochi Winter Olympics reached $50 billion. Even when the glorious but costly Olympic Games come... View Details

Can emigration from less democratic and economically less developed areas induce political and economic change? We study this question in the context of the second Great Migration of African Americans (1940–1970), when more than 4 million blacks left the U.S. South and... View Details

Between 1915 and 1930, during the First Great Migration, more than 1.5 million African Americans migrated from the South to the North of the United States, altering the racial profile of several northern cities for the first time in American history. I exploit this... View Details

In January 2018, President Donald Trump was full of optimism. He had just signed the most substantial legislation of his young presidency, the Tax Cuts and Jobs Act (TCJA), making major changes to the tax code. Echoing his campaign slogan—Make America Great Again—Trump... View Details

This article incorporates into modern optimal tax theory the classical logic of benefit‐based taxation in which an individual's benefit from the activities of the state is tied to his or her income‐earning ability. First‐best optimal policy is characterized... View Details

Teaching Note for HBS Nos. 218-095, 218-096, and 218-116. View Details

Snap, the disappearing message app, went public at $17 per share on March 2, 2017, making its two 20-something founders the youngest self-made billionaires in the country. Over the next three weeks, 14 analysts made investment recommendations on Snap: two with buy... View Details

Analyzes Snap’s value and analyst recommendations following the events described in the (A) case. View Details

Analyzes Snap’s value and analyst recommendations following the events described in the (B) case. View Details

Immigration policy is one of the most contentious public policy issues in the United States today. High-skilled immigrants represent an increasing share of the U.S. workforce, particularly in science and engineering fields. These immigrants affect economic growth,... View Details

This paper studies the effects of corporate tax changes on income inequality. Using state corporate tax rate changes as a setting, we show that cutting state corporate tax rates leads to increases in income inequality. This result is robust to using regression and... View Details

This note provides an overview of U.S. federal legislation relating to whistleblowing, Sarbanes-Oxley, Dodd-Frank (including the Office of the Whistleblower), and the False Claims Act. View Details

Tesla’s board of directors proposed an unusual compensation plan for the company’s CEO Elon Musk. The plan payouts were entirely contingent on achieving very ambitious market value, sales, and EBIT targets over the next ten years. If all the targets were achieved,... View Details

This case centers on the United Arab Emirates' (UAE) national goal of raising the happiness of its residents and visitors through ambitious government initiatives. They combined this bold national goal with an accountability structure (incentive plan) built on Key... View Details

After decades of centralized control of economic activity in space, NASA and U.S. policymakers have begun to cede the direction of human activities in space to commercial companies. NASA garnered more than 0.7% of GDP in the mid-1960s but is only around 0.1% of GDP... View Details