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Declining Competition and Investment in the U.S.

TLDR
The U.S. business sector has under-invested relative to Tobin's Q since the early 2000's, and as discussed by the authors argue that declining competition is partly responsible for this phenomenon.
Abstract
The U.S. business sector has under-invested relative to Tobin's Q since the early 2000's. We argue that declining competition is partly responsible for this phenomenon. We use a combination of natural experiments and instrumental variables to establish a causal relationship between competition and investment. Within manufacturing, we show that industry leaders invest and innovate more in response to exogenous changes in Chinese competition. Beyond manufacturing we show that excess entry in the late 1990's, which is orthogonal to demand shocks in the 2000's, predicts higher industry investment given Q. Finally, we provide some evidence that the increase in concentration can be explained by increasing regulations.

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Public Debt and Low Interest Rates

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Artificial Intelligence and the Modern Productivity Paradox: A Clash of Expectations and Statistics

TL;DR: In this paper, the authors argue that lags have likely been the biggest contributor to the paradox of the mismatch between expectations and statistics in Artificial Intelligence, arguing that the most impressive capabilities of AI, particularly those based on machine learning, have not yet diffused widely and that their full effects won't be realized until waves of complementary innovations are developed and implemented.
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The Rise of Market Power and the Macroeconomic Implications

TL;DR: This article studied the evolution of market power based on firm-level data for the U.S. economy since 1955 and measured both markups and profitability, and discussed the macroeconomic implications of an increase in average market power, which can account for a number of secular trends in the past four decades.
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The Cyclical Behavior of the Price-Cost Markup

TL;DR: In this article, the authors study the cyclical properties of the markup of price over marginal cost and find that all measures of markups are either procyclical or acyclical.
References
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The China Syndrome: Local Labor Market Effects of Import Competition in the United States

TL;DR: This paper analyzed the effect of Chinese import competition between 1990 and 2007 on US local labor markets, exploiting cross-market variation in import exposure stemming from initial diffe cerence to US labor markets.
Journal ArticleDOI

Relaxing price competition through product differentiation

TL;DR: In this paper, the authors present a very particular model of a market equilibrium in which two potential entrants will choose to enter the industry, and both will make positive profits, and they will choose both the specification of their respective products, and their prices.
Journal ArticleDOI

The Venture Capital Revolution

TL;DR: In this article, the authors draw together the empirical academic research on venture capital and highlight what is still not known, focusing on the role that venture capitalists play in mitigating agency conflicts between entrepreneurial firms and outside investors.
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Equity Premia as Low as Three Percent? Evidence from Analysts' Earnings Forecasts for Domestic and International Stock Markets

TL;DR: In this article, the authors estimate the equity premium from the discount rate that equates market valuations with prevailing expectations of future flows, and find that the average equity premium is around three percent (or less) in the United States and five other markets.
Posted Content

The Relation Between Price and Marginal Cost in U.S. Industry

TL;DR: In this article, an examination of data on labor input and the quantity of output reveals that most U.S. industries have marginal costs far below their prices, based on the empirical finding that cyclical variations in labor input are small compared to variations in output.
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