Income Diversification and Bank Performance: Evidence from Italian Banks

Using annual data from Italian banks, we study the link between non-interest revenues and profitability. We find that income diversification increases risk-adjusted returns. Our results provide econometric evidence consistent with current studies on EU banks, but do not support findings on the U.S. experience. In our view, the differences depend primarily on the relative importance of local banks: we find that the relation is stronger at large banks. In addition, we find that there are limits to diversification gains as banks get larger. Small banks can make gains from increasing non-interest income, but only when they have very little non-interest income share to start with. The source of non-interest income is less important than its level.

From insurance risk to credit portfolio management: a new approach to pricing CDOs

We present a new approach for pricing collateralized debt obligations (CDOs) which takes into account the issue of the market incompleteness. In particular, we develop a suitable extension of the actuarial framework proposed by Bayraktar et al. [Valuation of mortality risk via the instantaneous Sharpe ratio: Applications to life annuities. J. Econ. Dyn. Control, 2009, 33, 676–691], Milevsky et al. [Financial valuation of mortality risk via the instantaneous Sharpe-ratio: Applications to pricing pure endowments. Working Paper, 2007. Available at: http://arxiv.org/abs/0705.1302], Young [Pricing life insurance under stochastic mortality via the instantaneous Sharpe ratio: Theorems and proofs. Technical Report, 2007. Available at: http://arxiv.org/abs/0705.1297] and Young [Pricing life insurance under stochastic mortality via the instantaneous Sharpe ratio. Insurance: Math. Econ., 2008, 42, 691–703], which is based on the so-called instantaneous Sharpe ratio. Such a procedure allows us to incorporate the attitude of investors towards risk in a direct and rational way and, in addition, is also suitable for dealing with the often illiquid CDO market. Numerical experiments are presented which reveal that the market incompleteness can have a strong effect on the pricing of CDOs, and allows us to explain the high bid-ask spreads that are frequently observed in the markets.     

The Role of Turnover Costs in the Enforcement of Performance–Related Pay Contracts

Labour contracts which establish performance–related pay are afflicted with the firm's moral hazard problem because of the difficulty in the verifiability of performance by an external authority. Some models have explored the possibility that such contracts could be enforced through a mechanism of the firm's reputation or thanks to an excess of demand in the labour markets (unfilled job vacancies). In this paper a simple model is proposed to show the working of an alternative mechanism for performance–related pay contracts based on turnover costs, borne by firms arising from the process of hiring, training and firing. By sinking a certain amount of resources as turnover costs, employers may credibly promise to pay a bonus, if faced with the worker's threat to quit in the case of cheating, to avoid the loss of specific capital. This provides a formalization of the insight that turnover costs and specific investments might support the enforcement of implicit contracts. The welfare implications of this mechanism are worked out, showing how turnover costs on the one hand reduce the available social surplus but on the other hand increase this surplus by providing incentives for optimal effort.     

Productivity Shocks and Labour Market Outcomes for Top Earners: Evidence from Italian Serie A

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.     

基于低碳理念的景观全生命周期碳源和碳汇量化探究——以天津仕林苑居住区为例

：景观全生命周期包含景观材料的生产、建造、日常使用和维护及废弃拆除4个阶段。在提出景观全生命周期碳源和碳汇量化比较模型的基础上，以天津仕林苑居住区为例，对其景观50年全生命周期的碳源和碳汇进行比较研究，得到居住区景观在建设初期存在碳源和碳汇不平衡，碳源和碳汇量在将近30年时才可达到平衡的结果。其中，景观材料和维护阶段的碳源是居住区碳源的主要来源，因此，在居住区景观建设中，如何减少碳源量、增加碳汇量，是营建低碳景观的关键。     

Exploring the effects of mergers and acquisitions on acquirers' sustainability orientation: Embedding,adding, or losing sustainability

Mergers and acquisitions (M&A) have been primarily investigated from a shareholder-centric perspective of economic value maximization. However, this type of strategic initiatives also carries relevant implications for companies' capacity to respond to increasing social and environmental concerns among their stakeholders. In this study, we explore the processes related to, and nonfinancial consequences of, acquisitions involving sustainability-oriented firms. Leveraging interviews with business decision makers and secondary data covering the pre- and post-acquisition phases, we find three main paths leading the acquiring firms to embed, add, or lose sustainability. Therefore, three possible post-acquisition outcomes emerge, associated with differences in acquirers' focus on sustainability infusing the deal rationale, their due diligence activity, and practices of stakeholder management and integration in the post-acquisition phase.     

Genetic distance,trade, and the diffusion of development

The determinants of countries' long‐term income differences feature prominently in the literature. Spolaore and Wacziarg (The diffusion of development, Quarterly Journal of Economics, 2009 , 124, 469–529) argue that cultural differences, measured by countries' genetic distance, are an important barrier to the diffusion of development from the world's technological frontier. We revisit their findings in three ways. First, we successfully reproduce their results and confirm the robustness of their baseline findings. Second, we estimate their models for different time periods and find that the impact of genetic distance on income differences did not significantly change over time. Finally, we explore one of the underlying mechanisms of technology adoption and show that bilateral trade is one channel through which cultural differences retard the diffusion of development.     

Valuing investment projects under interest rate risk: empirical evidence from European firms

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.