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Entrepreneurial activity varies significantly across countries and over time. The economic and institutional context is a determining factor that can drive and lend shape to entrepreneurial activity. The search for a deeper understanding of the role of this factor constitutes a promising and important research stream. A thorough review of the specialist literature identifies groups of countries with similar economic and institutional environments. Subsequent analysis highlights differences in entrepreneurial activity and innovation outcomes between these homogeneous groups. Results indicate significant differences, not only in entrepreneurial activity, but also in the type of entrepreneurship and innovation results. These findings mark a relevant step forward in the identification of different environment types, and the effects of environment on entrepreneurial activity and innovation results.  相似文献   
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Si danno limitazioni inferiori e superiori per il valor medio del tasso implicito di operazioni finanziarie aleatorie di una classe determinata. Per l’ottenimento di alcune disuguaglianze si fa uso di una versione generalizzata della ben nota disuguaglianza di ?eby?ev tra medie con diverse ponderazioni che viene dimostrata in appendice e che vale anche per distribuzioni di probabilitá con componenti discreta e continua congiuntamente.  相似文献   
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External technology acquisition has been proved to be an important strategy to enhance firms’ innovation performance. However, previous studies claim that companies acquiring technologies tend to not carry on with this strategy over time, thus limiting their attitude toward continuous technology acquisition. Moreover, the extant literature also highlights that this attitude is strongly influenced by their organizational structure. Therefore, in the present paper, we investigate the relationship between how firms organize R&D activities and continuous technology acquisition. Specifically, given the increasing globalization of technological development, we focus on the role of R&D geographic dispersion, and how its influence is moderated by firms’ technological diversification. We tested our hypotheses on longitudinal data of 303 biotechnology firms that acquired, at least, one USPTO patented technology over the period 1982–2012. Results reveal that R&D geographic dispersion is curvilinearly (inverted U-shaped) related to continuous technology acquisition, with negative returns occurring earlier in technology-diversified companies.  相似文献   
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In recent decades, co‐authorship and policies aimed at inducing academic collaboration have increased simultaneously. Assuming that intellectual collaboration is exogenously determined, prior studies found a negative relationship between co‐authorship and productivity. I examine a panel data on economists publishing from 1970 to 2011 to test the causal effect of intellectual collaboration on intellectual output. As characteristics of the individual and her opportunity set are endogenously related to both collaboration and productivity, I instrument the amount of co‐authorship by the common research interest between an author and her potential co‐authors. After controlling for endogenous co‐authorship formation, unobservable heterogeneity and time varying factors, the effect of intellectual collaboration on individual performance becomes positive.  相似文献   
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We survey and assess the empirical literature on the sources of corruption Thanks to the improved availability of data, we are able to produce an improved cross-country econometric model to test well-established and more recent hypotheses jointly. We do not find that the common law system, or a past as a British colony predicts corruption. Our results support cultural theories on the causes of corruption, and suggest that a medium-long exposure to uninterrupted democracy is associated with lower corruption levels, while political instability tends to raise corruption. Our results also suggest that the diffusion of newspapers helps to lower corruption levels.   相似文献   
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Up until now, studies on entrepreneurs and their relationship to business performance have focused primarily on analyzing the entrepreneur as an individual. While studies have been conducted on the entrepreneurial team, their focus has centered on team size and degree of diversity - cultural, age, gender - leaving a gap in the analysis of the effect of a team’s competencies on the outcome of the ventures. This research aims to help fill this gap by using the psychometric instrument DISC. This research analyzes entrepreneurship by opportunity, evaluating the performance of 109 Colombian companies and the composition of their entrepreneurial teams. The results obtained provide the basis for better understanding of the make-up of entrepreneurial teams, considering the variances and interdependencies of the competency development level among their members. They reveal that identifying the similarity or heterogeneity in certain groups of competencies, as well as how developed they are, can have an impact on the ventures’ success. The cluster analysis carried out suggests that highly developed competencies associated with the ‘dominance’ dimension in the members of an entrepreneurial team are essential. These must be above-average in heterogeneous levels among the team members. They must also be accompanied by the ‘steadiness’ competency provided by the team-oriented partners, as well as an average, homogeneous level of competencies associated with ‘conscientiousness’ if the new business is to achieve good financial results in its early years. The ‘influence’ dimension did not play a significant role. The teams made up of more homogeneous partners obtained the poorest financial results. Furthermore, the study provides new perspectives for measuring business performance in a venture, as well as for evaluating the relationships between the entrepreneurial team's competencies and the company’s results in the first years of business. Accordingly, it offers inputs for future research.

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The paper explores the mostly tacit transmission of the assumption of non-satiation from the outset of classical political economy to the advent of marginal analysis in Great Britain. The evolution of the assumption is traced back to contributions to the philosophy of mind in the early British enlightenment, which provided scientific ground not only to the economic agent's insatiable nature but also to a delusional dynamic of association that challenges the causality between acquisitiveness and pleasure. The paper claims that, because there is evidence that such delusional aspect was known to the early political economists, the assumption of non-satiation might have become a mainstay in economics not only for its scientific status but also as a result of a strategic choice that can only be explained within the political, cultural, and social context in which it was made. Had this been the case, the exportability of the assumption through time and space must be further questioned. The consistent inclusion of non-satiation in economic theories, policies, and institutions may have had extraordinary consequences, and may have nurtured rational behaviors that in fact fulfill the assumption itself.  相似文献   
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Difficulties in implementing effective liquidity support – to counter speculative attacks – may partly explain why regional exchange rate agreements crawl regional trade integration. Our novel analysis of the European Monetary System confirms that liquidity support was provided under the discretion of the anchor country (Germany), and was indeed asymmetric across member countries and/or periods. In particular, it was less forthcoming (i) to countries further away from Germany (less politically influential there), (ii) to larger countries (interfering more with the Bundesbank's monetary control) and (iii) during periods when German inflation accelerated (and the Bundesbank needed a firmer grip on liquidity).  相似文献   
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