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21.
Giacomo Calzolari Vincenzo Denicolò Piercarlo Zanchettin 《The Rand journal of economics》2020,51(3):713-738
This article unifies various approaches to the analysis of exclusive dealing that so far have been regarded as distinct. The common element of these approaches is that firms depart from efficient pricing, raising marginal prices above marginal costs. We show that with distorted prices, exclusive dealing can be directly profitable and anticompetitive provided that the dominant firm enjoys a competitive advantage over rivals. The dominant firm gains directly, rather than in the future, or in adjacent markets, thanks to the boost in demand it enjoys when buyers sign exclusive contracts. We discuss the implication of the theory for antitrust policy. 相似文献
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The rising number of foreign workers in Italy during the last 15 years has led to a conspicuous increase in the amount of remittances sent abroad. In this paper, we examine the determinants of remittance outflows originated in Italy and transferred abroad through registered financial intermediaries. After controlling for a wide set of socioeconomic regressors, we document a strong positive relation between remittances and the cost of travel between Italy and the migrants' respective home countries. We interpret this result as indirect evidence of unrecorded flows, since the relation between remittances and travel cost should be non‐significant unless geographical proximity permits remitters to switch to informal (non‐observable) transmission mechanisms. Moreover, using data on temporal and monetary costs for a subset of bilateral corridors, we also find remittances to be negatively correlated with high transaction costs and low speed of transfer. We rely on this empirical evidence and on a model of migrants' remitting behavior to present new strategies for estimating the size of the informal outflow. 相似文献
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Giacomo Domini 《The Scandinavian economic history review / [the Scandanavian Society for Economic and Social History and Historical Geography]》2016,64(2):138-159
This work investigates the relationship between trade and technological specialisation in Italy, during the long time span ranging from Unification to the eve of the Second World War. To do this, new series of Italy’s indices of specialisation in trade and technology are calculated based on official data. Empirical analysis, based on Spearman rank correlation coefficients and fixed-effects regression, shows the emergence of a positive relationship between specialisation in technology and specialisation in trade after the start of the country’s modern economic growth, around the turn of the twentieth century. This, however, was uniquely driven by a negative relationship between technological specialisation and import shares, while no significant relationship between the former and export shares emerges. Furthermore, this finding excludes the most important sector, leading Italian industrialisation, that is, textiles, the outstanding performance of which can be seen as largely determined by its being particularly suited to the country’s factor endowment. 相似文献
27.
The ability of firms to operate in several markets at the same time is changing regulators' tasks. Regulatory bodies are now having to deal with multinational firms which spread their business activities all over the world. This paper analyzes the theory and practice of regulation in terms of the multinational dimensions of regulated firms. We show that the perceived theory of regulation is indeed affected, and that new issues arise both from a positive and normative point of view. 相似文献
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In this paper we propose a unified framework to analyse contemporaneous and temporal aggregation of a widely employed class of integrated moving average (IMA) models. We obtain a closed-form representation for the parameters of the contemporaneously and temporally aggregated process as a function of the parameters of the original one. These results are useful due to the close analogy between the integrated GARCH (1, 1) model for conditional volatility and the IMA (1, 1) model for squared returns, which share the same autocorrelation function. In this framework, we present an application dealing with Value-at-Risk (VaR) prediction at different sampling frequencies for an equally weighted portfolio composed of multiple indices. We apply the aggregation results by inferring the aggregate parameter in the portfolio volatility equation from the estimated vector IMA (1, 1) model of squared returns. Empirical results show that VaR predictions delivered using this suggested approach are at least as accurate as those obtained by applying standard univariate methodologies, such as RiskMetrics. 相似文献
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Giacomo Bormetti Lucio Maria Calcagnile Fulvio Corsi Stefano Marmi Fabrizio Lillo 《Quantitative Finance》2013,13(7):1137-1156
Instabilities in the price dynamics of a large number of financial assets are a clear sign of systemic events. By investigating portfolios of highly liquid stocks, we find that there are a large number of high-frequency cojumps. We show that the dynamics of these jumps is described neither by a multivariate Poisson nor by a multivariate Hawkes model. We introduce a Hawkes one-factor model which is able to capture simultaneously the time clustering of jumps and the high synchronization of jumps across assets. 相似文献
30.
Export restraints in a model of trade with capital accumulation 总被引:1,自引:0,他引:1
This paper examines the impact of voluntary export restraints (VERs) in an international duopoly modeled as a differential game. With a Ramsey capital accumulation dynamics, the game admits multiple steady states, and a VER cannot be ‘voluntarily’ employed by the foreign firm in case of Cournot behavior in demand substitutes. Hence, the dynamic framework confirms the results of the VERs literature with static interaction in output levels. In the case of price behavior, the adoption of an export restraint may increase the profits of both firms if products are substitutes and the steady state is ‘market-driven’. However, contrary to the acquired wisdom based upon the static approach, the dynamic analysis also admits an equilibrium outcome, identified by the Ramsey golden rule, where the incentive to adopt a VER is ruled out, irrespective of whether firms are quantity- or price-setters. 相似文献