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作者：Liski, Matti; Vehvilainen, Iivo
作者单位：Aalto University
摘要：Using micro-data on over 160 million bids to buy and sell from three major electricity markets, we study efficiency improvements resulting from technologies such as storage. Consumer benefits arise not from stabilized prices but from changes in general price levels. To unpack the findings, we develop a set of price-theory results, demonstrating that the convexity of market excess demand, derived from the bids, serves as a novel measure that strongly predicts consumer benefits across all market...
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作者：D'annunzio, Anna; Russo, Antonio
作者单位：University of Rome Tor Vergata; IMT - Institut Mines-Telecom; Institut Mines-Telecom Business School
摘要：We study the pass-through of ad valorem taxes with a multiproduct monopolist. We characterize two mechanisms whereby an ad valorem tax on one good reduces all prices (Edgeworth's paradox), depending on the goods being substitutes or complements. We also find that the tax can increase the supply of all goods. Hence, consumer surplus and welfare can increase even when the goods are underprovided compared to the social optimum. We provide several applications where these results hold. Our finding...
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作者：Bourreau, Marc; Jullien, Bruno; Lefouili, Yassine
作者单位：Institut Polytechnique de Paris; IMT - Institut Mines-Telecom; ENSAE Paris; Telecom Paris; Communaute d'universites et etablissements de Toulouse (Comue); Centre National de la Recherche Scientifique (CNRS); Universite Toulouse 1 Capitole; Toulouse School of Economics; Communaute d'universites et etablissements de Toulouse (Comue); Universite Toulouse 1 Capitole; Toulouse School of Economics
摘要：We study the impact of horizontal mergers on the incentives of merging firms to invest in incremental innovation. We provide a decomposition of this impact that clarifies the various forces at work and the differences between demand-enhancing and cost-reducing innovation. Moreover, we derive sufficient conditions for a merger to either reduce or raise the merging firms' incentives to innovate, and show that the comparison of the price diversion ratio and the innovation diversion ratio can help...
