La valutazione del Prezzo di Opzioni Su Titoli a Reddito Fisso in un Modello Stocastico di Equilibrio

Viene reimpostato lo schema di valutazione delle opzioni considerando il tasso d'interesse come variabile di base del mercato e studiando il problema di valutazione del prezzo in un modello stocastico di equilibrio per la struttura a termine dei tassi d'interesse. Sono ricavate limitazioni per la funzione valore delle opzioni ed estesi al comparto obbligazionario risultati classici della teoria dell'option pricing, utilizzando proprietà di martingala vengono proposte soluzioni in forma integrale dell'equazione generale di valutazione del prezzo.     

Economics of externalities and public policy

In this paper we study a particular case of “multiple” externalities associated to the production of a good/activity, whose external effects can change from positive to negative depending on the level of output (intersecting externalities). To analyze their impact on the public policy we propose a very simple two-agent partial equilibrium model in the technological context of externalities. In a static framework, the centralized solution always implies an optimal policy, which may consist of taxation or subsidization depending on the individual optimum and on the technology parameters. In a dynamic model with local knowledge of the efficiency function and instantaneous output adjustments, such an optimal policy can be structurally stable or unstable. In the latter case, under small changes of the parameters the policy may switch from low taxation/subsidization to high taxation/subsidization or vice versa, or even jump discontinuously from taxation to subsidization or vice versa. Furthermore, the decentralized solution based upon “tradable rights” can be economically equivalent to the centralized solution in the form of taxation policy but the two solutions may be not politically equivalent.

New development: Directly elected mayors in Italy—creating a strong leader doesn't always mean creating strong leadership

More than 20 years after their introduction, directly elected mayors are key players in Italian urban governance. This article explains the main effects of this reform on local government systems and provides lessons for other countries considering directly elected mayors.     

Internationalisation,Innovation and Productivity: How Do Firms Differ in Italy?

This paper addresses the issue of intra‐industry heterogeneity and internationalisation. We show that, after controlling for sector, location, firm age and size, Italian manufacturing companies exhibit different economic and innovative performance according to their involvement in foreign activities. In particular, exporters show intermediate innovative performance between non‐internationalised firms and those carrying out foreign production. Multinationals with a lower commitment to foreign markets, i.e. with non‐manufacturing activities abroad only, exhibit a higher productivity than exporters but they do not appear to innovate more than the latter. Heterogeneity in productivity is robust to controlling for innovation inputs and outputs, suggesting that the difference in economic performance cannot be entirely attributed to different innovative activities, and that the involvement in international operations can be a distinct channel of knowledge accumulation.     

Age and firm growth: evidence from three European countries

This article provides new insights into the dependence of firm growth on age along the entire distribution of growth rates, and conditional on survival. Using data from the European firms in a global economy survey, and adopting a quantile regression approach, we uncover evidence for a sample of French, Italian and Spanish manufacturing firms with more than ten employees in the period from 2001 to 2008. We find that: (1) young firms grow faster than old firms, especially in the highest growth quantiles; (2) young firms face the same probability of declining as their older counterparts; (3) results are robust to the inclusion of other firms’ characteristics such as labor productivity, capital intensity and the financial structure; (4) high growth is associated with younger chief executive officers and other attributes that capture the attitude of the firm toward growth and change. The effect of age on firm growth is rather similar across countries.     

Firms’ exporting and importing activities: is there a two-way relationship?

The literature on firm heterogeneity and trade has highlighted that most trading firms tend to engage in both importing and exporting activities. This paper provides some evidence that helps understanding to what extent this is the result of a two-way relationship. Using firm-level data for a group of 27 Eastern European and Central Asian countries from the World Bank Business Environment and Enterprise Performance Survey (BEEPS) over the period 2002–2008, we estimate a bivariate probit model of exporting and importing. After controlling for size (and other firm-level characteristics) we find that firms’ exporting activity does not increase the probability of importing, while the latter has a positive effect on foreign sales. This effect is mainly channeled through an increase in firm productivity and product innovation.     

Mortgage‐backed Securitization and SME Lending During the Financial and Economic Crisis: Evidence from the Italian Cooperative Banking System

I investigate the determinants of the securitization activities of Italian cooperative banks during the financial and economic crisis (2007–2014) and the impact of securitization on the supply of loans to SMEs. The less deposit‐funded, less profitable and less capitalized cooperative banks are, the more likely they are to securitize and the more likely it is that they will securitize to a larger extent. Furthermore, I find that securitization has not directly affected the supply of new SME loans. However, there is strong evidence of a risk‐rebalancing effect of securitization on the balance sheet, especially in the period 2010–2014.     

Export behavior and productivity growth: Evidence from Italian manufacturing firms

Export Behavior and Productivity Growth: Evidence from Italian Manufacturing Firms. — This paper provides econometric evidence supporting the hypothesis that exporting implies learning effects. Learning-by-exporting is modeled as a change, induced by export behavior, in the stochastic process governing firms’ productivity. Empirically, this is implemented by specifying cross-section regressions of labor productivity growth on measures of export behavior, controlling for past productivity growth and other firms’ characteristics. Using a sample of Italian manufacturing firms, it is found that exporters do not exhibit faster productivity growth. Nevertheless, growth in value added per worker has a positive and significant relation with firms’ export intensity. In other words, only firms substantially involved in exporting have a significantly higher rate of productivity growth. This result suggests that learning-by-exporting is by no means simply the outcome of the presence in the export market.     

What makes a successful exporter? An introduction

The papers in this issue continue with the tradition of adding puzzles pieces to the overall picture of the impact and importance of firm international activities. In "What makes a successful exporter?", we have collected twelve papers, the majority of which were presented at the 13th annual ISGEP workshop in Ljubljana, Slovenia on 20–21 September 2018. The common thread linking these papers is that they explore both what it means to be an exporter and the ramifications of exporting on firms and the economy as a whole. On the one hand, this special issue addresses the role of foreign sourcing, export experience in the board of directors and credit supply shocks on the propensity to export, as well as the factors that affect firms' overall readiness to export. On the other hand, it investigates various measures of performance in the export markets, such as export duration, markups, quality upgrading and product mix.