NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Daniel Andrei

UCLA

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NBER Working Papers and Publications

May 2017Asset Pricing in the Quest for the New El Dorado
with Bruce I. Carlin: w23455
Creative destruction not only involves bringing new technology to market, it imposes higher risk on the future of existing assets. We characterize the asset pricing implications of creative destruction when investors compete for market share. Compared to the social optimum, the quest for oligopoly rents leads to over-investment in uncertain projects, spikes in asset prices and risk premia, and an aftermath in which prices fall steeply as uncertainty resolves. These pricing patterns resemble a bubble ex post, but arise solely from competitive behavior and do not require information asymmetry, behavioral biases, or financial frictions. Our analysis yields novel empirical predictions and we discuss how financial innovation might be used to predict bubbles ex ante.
June 2014Model Disagreement and Economic Outlook
with Bruce Carlin, Michael Hasler: w20190
We study the impact of model disagreement on the dynamics of asset prices, return volatility, and trade in the market. In our continuous-time framework, two investors have homogeneous preferences and equal access to information, but disagree about the length of the business cycle. We show that model disagreement amplifies return volatility and trading volume by inducing agents to have different economic outlooks, which generates a term structure of disagreement. Different economic outlooks imply that investors will trade even if they do not disagree about the current value of fundamentals. Also, we find that while the absolute level of return volatility is driven by long-run risk, the variation and persistence of volatility (i.e., volatility clustering) is driven by disagreement. Compared ...
 
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