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The mergers we study – hospital acquisitions of physician practices – have reshaped the $1 trillion US physician industry, nearly doubling the share of physicians working for hospitals between 2008 ...
We present a new model of competition between digital media platforms with targeted advertising. The model adds new insights around how user heterogeneity and overlap, along with user and advertiser ...
We analyze the effect of California's $20 fast food minimum wage, which was enacted in September 2023 and went into effect in April 2024, on employment in the fast food sector. In unadjusted data from ...
During academic year 2024-25, the NBER is providing fellowship support for graduate students studying the economics of aging and health, behavioral macroeconomics, and consumer financial management.
Targeting distributional impacts is gaining importance in the design of environmental policy. To achieve this, policy makers are adopting advances in air transport models to predict the benefits of ...
The integration of algorithmic trading with reinforcement learning, termed AI-powered trading, is transforming financial markets. Alongside the benefits, it raises concerns for collusion. This study ...
The importweighted average tariff subsequently used by USTR to rank how protectionist are trading partners is atheoretic and misleading for this purpose. We propose and implement a theory-consistent ...
We develop an experimental framework to identify the belief-based and taste-based drivers of demand for Environmental, Social, and Governance (ESG) partnerships. Our study implements two symmetric ...
This paper evaluates Laffer curves produced by reforms to nonlinear income taxes, focusing on individual taxpayers. A reform puts a taxpayer on the “wrong” side of the Laffer curve if it increases ...
We construct new population-level linked administrative data to study households' access to credit in the United States. These data reveal large differences in credit access by race, class, and ...
The attendance rate at religious services is an important variable for the sociology and economics of religion, but long-term and global data are scarce. Retrospective questions from the International ...
Optimizing state and regional physician labor supply has been an important policy issue in healthcare in the United States. One of the proposed solutions has been the universal licensing recognition ...
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