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71.
72.
Vincenzo Carrieri Andrew M. Jones Francesco Principe 《Oxford bulletin of economics and statistics》2020,82(3):549-576
How are top earners affected by productivity shocks? We address this question using a unique longitudinal data set on the universe of professional football players in the Italian Serie A, representing 20% of top earners in Italy. We use traumatic injuries and adopt an IV strategy to provide causal estimates of the impact of productivity shocks on several labour market outcomes. We find that a 30-day injury substantially affects the probability of contract renegotiation and reduces net wages by around 12%. We show that this large penalty is due to employer's precautionary motives rather than to shock-induced reduction in current player's performance. 相似文献
73.
74.
Vincenzo Denicolo 《Australian economic papers》1998,37(4):447-449
In a recent paper, Goel (1996) analyses the effect of patent length on firm's R&D in a model where the timing of innovations is stochastic. He concludes that: 'Higher patent length does not necessarily lead to more R&D spending' (1996, p. 77). More precisely, 'in projects with high probabilities of innovation success firms might actually reduce their R&D spending when the patent length increases' (1996, p. 78). This conclusion, however, is flawed. The purpose of this note is to correct Goel's analysis, showing that in his model an increase in patent's length unambiguously leads to higher R&D investment.1 相似文献
75.
Vincenzo Quadrini 《European Economic Review》2005,49(8):1927-1951
This paper evaluates the quantitative impact of capital liberalization on the taxation structure and welfare of the liberalizing countries when governments conduct fiscal policy optimally but without commitment (time-consistent policies). The transition from a regime of capital autarky to a regime of free mobility leads to a decrease in the long-term tax rate on capital of 13 percent and an increase in the tax rate on labor of 2 percent. As a consequence of this taxation shift, welfare increases by about 1 percent. The reduction in capital taxation induced by capital market liberalization is welfare improving because, in the absence of capital mobility, the time-consistent policies over-tax capital. 相似文献
76.
Abstract . Using the Canadian General Social Survey we compute returns to post-secondary education relative to high school. Unlike previous research using Canadian data, our data set allows us to control for ability selection into higher education. We find strong evidence of positive ability selection into all levels of post-secondary education for men and weaker positive selection for women. Since the ability selection is stronger for higher levels of education, particularly for university, the difference in returns between university and college or trades education decreases slightly after accounting for ability bias. However, a puzzling large gap persists, with university-educated men still earning over 20% more than men with college or trades education. 相似文献
77.
Recently, several studies have emphasized the role of R&D expenditure in determining Total Factor Productivity (TFP). In this paper it is shown that the relationship between R&D variables and TFP is far from being established. In particular, by using data for the Italian economy, it is found that the estimated effects of R&D variables on TFP crucially depends on: (i) the way in which the production function, used to derive Solow residuals, is defined; (ii) the numbers of maintained hypotheses used to estimate Solow residuals; (iii) the level of aggregation of the data employed in the empirical analysis. 相似文献
78.
Vincenzo Scoppa 《Empirical Economics》2008,35(1):123-140
Many incentive contracts are based on subjective evaluations and contractual disputes depend on judges’ decisions. However,
subjective evaluations raise risks of favouritism and distortions. Sport contests are a fruitful field for testing empirically
theories of incentives. In this paper the behaviour of the referees in the Italian soccer (football) league (“Serie A”) is
analyzed. Using data on injury (or extra) time subjectively assigned by the referee at the end of the match and controlling
for factors which may influence it (players substitutions, yellow and red cards, penalty kicks, etc.), we show that referees
are biased in favour of home team, in that injury time is significantly greater if home teams are losing. The refereeing bias
increases greatly when there is no running track in the stadium and the crowd is close to the pitch. Following the 2006 “Serie
A” scandal we test whether favouritism emerges towards teams suspected of connections with referees finding that these teams
obtain favourable decisions. Social pressure by the crowd attending the match however appears to be the main cause of favouritism.
I would like to thank Francesco Aiello, Martin Brimble, Maria De Paola, Filippo Domma, Nicola Meccheri, Antonio Nicita, Michela
Ponzo and two anonymous referees for useful comments. The usual caveats apply. 相似文献
79.
Using data on road accidents, traffic fatalities and driving offences taking place in Italy over the period 2001–2005, we estimate the effects of the introduction on July 2003 of a penalty points system for driving offences. To identify the causal effect of the penalty points system (PPS) on road safety we use a regression discontinuity design. It emerges that, controlling for weather conditions, police patrols, speed cameras, gasoline price, unemployment rate, the introduction of the PPS has led to a reduction of about 9 % of road accidents and of about 30 % of traffic fatalities. These findings are robust to different specifications of the model and different time windows. Moreover, it emerges that the driving offences for which the introduction of the new regime has determined a sharp change in the sanction scheme have reacted more than offences for which the change was less relevant. 相似文献
80.
In this article, we perform an empirical investigation of the effect of the interest rate uncertainty on the valuation of investment projects. The analysis is carried out by employing a real option approach and by considering a set of firms that operate in various production sectors in the euro area. In particular, the revenues generated by the investment projects are modelled using a geometric Brownian motion, whereas the interest rate is specified as a stochastic process of Vasicek type. Moreover, using the volatility of the equity return as a proxy, the volatility of the revenues is calibrated to real firm data, while the parameters of the interest rate model are estimated by fitting the Euribor time series. To this aim, an ad hoc calibration procedure is developed which is based on the maximum likelihood principle and thus has the merit of being simple, fast and suitable for practical purposes. Our study reveals that the interest rate uncertainty reduces the valuation of investment projects. However, stochastic interest rates do not provide a substantial improvement with respect to constant interest rates, or at least the differences are not statistically significant. 相似文献