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Estimating the effect of aging on productivity requires clean measures of productivity. Additionally, one needs to control for unobserved heterogeneity at the worker, firm and worker/firm level, to account for the role of experience and to correct for selection bias. We tackle these issues exploiting a panel of Gran Prix Formula One drivers, which provides a unique setting to single out the data requirements needed to credibly estimate the effect of age on productivity. Results robust to the inclusion of worker, firm and match effects show that the age-productivity link has an inverted U-shape profile with a peak at the age of 30-32. The use of repeated cross-sections of individuals also produces consistent results provided that cohort effects are properly accounted for. Relying on team-average measures of productivity makes instead inference harder.  相似文献   
75.
New Evidence on the Politics and Economics of Multiparty Cabinets Duration   总被引:1,自引:0,他引:1  
A Proportional Hazards Specification for cabinet duration data is estimated by mean of a flexible parametric approach. The hazard rate is found to be significantly affected by the majority status, the degree of fragmentation and ideological homogeneity of the coalition, the stability and the polarisation of the legislature and the time horizon at the moment of cabinet formation. Interesting innovative results concern the higher stability of cabinets supported by coalitions ideologically closer to the median party and/or left–oriented. The overall state of the economy also has a role. Graphical evidence suggests that the underlying distribution of duration data might be a Gompertz distribution.  相似文献   
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In this paper the link between labour market flexibility andinnovation is analysed paying particular attention to the differenttechnological regimes of economic activities and the differentgeographical areas of the Italian economy. A dynamic panel dataspecification is used to assess the endogenous relationshipbetween patents, included as a proxy for innovation, and jobturnover and wages, which represent labour market indicators.Our results show that higher job turnover only has a significantand negative impact on patent activities in regional sectorsof Northern Italy, while blue and white collar wages have beengenerally found to have a positive and significant impact oninnovation.  相似文献   
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This paper analyses and discusses the patenting activity of Public Research Organizations (PROs) in Southern European countries. Despite the importance of the topic, studies about the European experience are rare. By using an original database of “American” (USPTO) and “European” (EPO) patents held by PROs in Portugal, Spain, France, Italy and Greece, we observe that the number of university patents in these countries has not increased dramatically during the last years, despite a growing interest at both European and national level during the same period. However, differences do exist among countries in terms of number of granted patents and regulative frameworks. With regard to PROs patenting strategies, we argue that PROs should be progressively able to adopt a “balanced” approach, in order to achieve co-existence between the traditional mechanisms of the so-called “open research system” and the more recent concerns about intellectual property protection, technology transfer and regional development.  相似文献   
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We consider a simple overlapping generations economy where, because of asymmetric information and limited liability both in the loan and the deposits markets, firms have the incentive to undertake less efficient investment projects, while intermediaries have the incentive to monitor a smaller number of firms. Because of the positive relationship between the deposit interest rate and the level of monitoring, the lending activity of intermediaries may cause endogenous fluctuations in the level of economic activity.
In this economy, a higher capital requirement, introduced to render deposit contracts incentive compatible, implies a higher steady state stock of capital, fewer bankruptcies among intermediaries and smaller fluctuations in the level of economic activity.
(J.E.L. E32, D82, G28)  相似文献   
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We find evidence consistent with Italian nonlisted subsidiaries engaging in accrual and real earnings management, so that their listed parents can meet or beat benchmarks. Thus, the parent firm drives the earnings management of the subsidiaries. We identify parents that are more likely to have managed earnings as the ones that avoid a small loss or meet or beat analyst forecast by a few cents. Cross‐sectional analysis reveals that Big 4 auditors mitigate accrual earnings management at the subsidiary level and that family‐owned firms use earnings management through nonlisted subsidiaries mainly to avoid reporting losses. Finally, we find that parent firms communicate earnings management strategies to their subsidiaries using board proximity. Our evidence shows that business groups manage earnings differently from single firms, pushing earnings management down to subsidiaries. It also supports the monitoring role of Big 4 auditors in a business group setting and contributes to understanding financial reporting decisions in family‐owned firms.  相似文献   
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