We evaluate the 2017 Tax Cuts and Jobs Act. Combining reduced-form estimates from tax data with a global investment model, we estimate responses, identify parameters, and conduct counterfactuals. Domestic investment of firms with the mean tax change increases 20% versus a no-change baseline. Due...

Multinational firms (MNEs) accounted for 42 percent of US manufacturing employment, 87 percent of US imports, and 84 of US exports in 2007. Despite their disproportionate share of global trade, MNEs' input sourcing and final-good production decisions are often studied separately. Using newly...

We introduce a general quantifiable framework to study the location decisions of multinational firms. In the model, firms choose in which locations to pay the fixed costs of setting up production, taking into account potential complementarities among production locations. The firm's location...

As a bridge between Chinese mainland and international financial markets, the Stock Connect program allows investors on both sides to gain mutual access. By analyzing how cross-border flows respond to macro-related shocks, we show that compared with possibly homemade foreign investors, genuine...

The rise of artificial intelligence (AI) and of cross-border restrictions on data flows has created a host of new questions and related policy dilemmas. This paper addresses two questions: How is digital service trade shaped by (1) AI algorithms and (2) by the interplay between AI algorithms and...

Applied general-equilibrium (AGE) models have often made compromises to circumvent difficult modeling problems. One of these is avoiding endogenous zeros, ruling out important questions. Traditional perfect competition models: when do technologies or trade links switch from active to inactive or...

Many developing countries would like to increase the share of modern or formal sectors in their employment. One way to accomplish this goal may be to encourage the entrance of foreign firms. They are typically relatively large, with high productivity and good access to foreign markets, and might...

Despite competition concerns over the increasing dominance of global corporations, many argue that productivity spillovers from multinationals to domestic firms justify pro- FDI policies. For the first time, we use firm-to-firm transaction data in a developed country to examine the impact of...

Climate-related risks have increased in recent decades, both in terms of the frequency of extreme weather events (physical risk) and implementation of climate-change mitigation policies (transition risk). This paper explores whether multinational firms react to such risks by altering their...

In this paper, I summarize the results of empirical studies in the areas of schooling and health, public programs and infant mortality, and government regulation of teenage smoking. My review is selective and is based on my own research. It is neutral with respect to the question of whether the...