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We provide the first recursive quantization-based approach for pricing options in the presence of stochastic volatility. This method can be applied to any model for which an Euler scheme is available for the underlying price process and it allows one to price vanillas, as well as exotics, thanks to the knowledge of the transition probabilities for the discretized stock process. We apply the methodology to some celebrated stochastic volatility models, including the Stein and Stein [Rev. Financ. Stud. 1991, (4), 727–752] model and the SABR model introduced in Hagan et al. [Wilmott Mag., 2002, 84–108]. A numerical exercise shows that the pricing of vanillas turns out to be accurate; in addition, when applied to some exotics like equity-volatility options, the quantization-based method overperforms by far the Monte Carlo simulation. 相似文献
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The paper explores the structural changes, in response to internationalization, in an important traditional activity (food chain, meat processing) in a typical ‘district area’. In the paper, attention is focused on the ‘Institutional structure of production’ (Coase, R. 1992) and the cluster is considered as a whole, as a complex economic player, capable of generating coherent action, regulated by institutional mechanisms, and founded on a set of ‘public assets’ which make up its ‘social capital’. The paper is based on many empirical studies and surveys aimed at exploring the structure of SMEs and the role of the local institutions: the changes observed over time and in response to internationalization underline the reinforcement of the activity's cluster configuration. These features emphasize the existence of a specific unit of analysis, indivisible from the individuals which constitute it. The discussion touches on the classical themes of the efficiency of the net-economy based on SMEs, and their prospects in a context of growing globalization. The paper does not aim to enter into the debate on the origins and mechanism of innovation. However, the case study does illustrate the strength of the hypothesis of a unit of analysis different from the firm for discussion of a number of topics: some empirical examples of innovation, of significance for the economic consolidation of the ID, highlight the importance of district relationships in the production and spread of innovation. 相似文献
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ADMINISTRATIVE CHANGE IN THE EU: A CROSS‐COUNTRY EMPIRICAL STUDY ON THE CONTEXTUAL DETERMINANTS OF NPM REFORM RHETORIC
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Giuseppe Lucio GAETA Giorgia TRASCIANI 《Annals of Public and Cooperative Economics》2017,88(3):323-344
Framed within the paradigm of New Public Management (NPM), structural reforms in the EU aimed at modernizing the public administrations of Member States (MSs) have long since been a priority area of the EU's economic policy. Since the 1990s, these reforms have been sharply intensified across European countries with the declared purpose of enhancing economy, efficiency and effectiveness in their national public sectors’ organizations. In line with the European Commission's recent research initiatives in search for novel quantitative data on NPM in the EU, this paper studies European parties’ NPM reform rhetoric. More specifically, it investigates the MSs’ institutional, economic and political context within which parties have declared their intention of reforming national administrative systems. Thus, it sheds light on the MSs’ domestic factors that are associated with the diffusion of the NPM values across the political discourse of EU's national parties. 相似文献
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We investigate a differential duopoly game with horizontal product differentiation and advertising efforts aimed at increasing market demand, to show that the standard approach to spatial competition fails to produce a pure-strategy price equilibrium in a dynamic game framework. This holds independently of the shape of the transportation cost function. Then, we introduce an endogenous cost associated with the choice of location and characterise the feedback equilibrium, identifying the necessary and sufficient condition for the existence of the pure-strategy (stationary) price equilibrium. The same condition is singled out for the static game where consumer population is constant. Finally, we show that the static game cannot be viewed as a special case of the dynamic one. 相似文献
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James J. Cordeiro Giorgia Profumo Ilaria Tutore 《Business Strategy and the Environment》2021,30(4):2091-2107
Using the first ever Newsweek “Green Rankings” of the 500 largest U. S. firms in 2009 as a significant historical event, we test for the stockholder reaction to ratings of corporate environmental performance. Both the conventional null hypothesis significance testing and Bayesian approaches show that stockholders react significantly more positively to corporations with higher ratings of corporate environmental performance and that this effect is stronger in family owned firms. Our findings suggest that majority shareholders do not necessarily appropriate minority stockholders' rents when investing in environmental activities, as would be the case in the presence of “Type II” agency conflicts between majority family owners and minority stockholders. The family ownership effect is also found to be stronger in dirty (heavy polluting) industries as well as in more competitive and more opaque industry contexts. 相似文献
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Jeff Greene Dennis Purcell Brian Edelman Doug Giordano Richard Ruback Dean Mihas Tim Opler Tom Cahill Glen Giovannetti 《实用企业财务杂志》2010,22(2):8-35
In a roundtable published in this journal a year ago, there was a clear consensus that the R&D function in big pharma was inefficient and in need of major restructuring, possibly through increased investments by venture capital and private equity firms. In this discussion, an accomplished group of industry practitioners begins by looking at the prospects for both venture capital and private equity to play meaningful roles in financing early- and mid-stage drug development. In so doing, they explore questions like the following:
- • Are there ways for big pharma and biotech to reduce “science risk” and make R&D funding more profitable and attractive to venture capital and private equity—and perhaps even hedge funds?
- • What roles do you see for specialty PE firms like Symphony Capital and Paul Capital, which are now bundling mid-stage development assets and securitizing royalties?
- • Will PE be attracted to less-R&D-intensive activities like medtech and generics?
- • Have the recent consolidation through mergers and reorganization of big pharma into decentralized business units created opportunities for carve-outs of certain businesses?
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Emanuele Giovannetti 《The Journal of industrial economics》2000,48(1):71-102
The model explains the emergence of asymmetric productive structures among regions based on adoption of a quality improving technology. Firms' products are differentiated both in location and quality, location is given. We characterize symmetric and asymmetric equilibria of the two stage game in price and adoption. Asymmetric equilibria display partial adoption frequencies and regular geographical patterns of adoptions. The asymmetry of the economy has, often, a reverse U-shaped relation with the innovation size. Market integration is an obstacle for the full adoption of the new technology and favours the emergence of regional asymmetries. 相似文献