Sharing risk and ambiguity

We study the market implications of ambiguity in common models. We show that generic determinacy is a robust feature in general equilibrium models that allow a distinction between ambiguity and risk.     

Regional consumption dynamics and risk sharing in Italy

In this paper, we propose a new method for investigating consumption insurance. Differently from the existing literature, we use error correcting VAR models in order to capture simultaneously the occurrence of risk sharing against permanent and transitory shocks. The proposed method is applied to the case of Italian regions. Empirical results obtained over the 1960–2001 period reveal that contrary to previous findings, Italian regions seem to shield against permanent shocks other than transitory ones. Although some biases are detected in the allocation process of resources, deviations from full consumption insurance are not as relevant as claimed in the previous literature on the Italian regions.     

Endogenous transportation technology in a Cournot differential game with intraindustry trade

We investigate a dynamic Cournot duopoly with intraindustry trade, where firms invest in R&D to reduce the level of iceberg transportation costs. We adopt both open-loop and closed-loop equilibrium concepts, showing that a unique (saddle point) steady state exists in both cases. In the open-loop model, optimal investments and the resulting efficiency of transportation technology are independent of the relative size of the two countries. On the contrary, in the closed-loop case firms’ R&D incentives are driven by the relative size of the two countries. Policy implications are also evaluated.     

INTELLECTUAL PROPERTY MEETS ECONOMIC GEOGRAPHY: GLOBALIZATION, INEQUALITY, AND INNOVATION STRATEGIES

I perform a Schumpeterian analysis of a world economy in which heterogenous individuals and firms endogenously respond to stronger global competition by undertaking more education and by spending more in research and development (R&D). A more globalized economy is predicted to exacerbate wage inequality, but to spur human capital accumulation within each country. However, despite its positive level effects on consumption and output, globalization can reduce each country's per-capita output growth rate. R&D specialization allows each country to positively invest in manufacturing, variety proliferation R&D, and product quality upgrading R&D. The existence of such an R&D specialization – jointly with domestic size – allows us to explain some different economic performance about inequality and R&D effort of developed regions, such as the US and the EU countries.     

Can Risk‐Averse Households Make Risky Investments? The Role of Trust in Others

In this paper, using data from the Survey on Health, Ageing and Retirement in Europe (SHARE, 2006 and 2013 waves), we illustrate the link between individuals’ attitudes to financial risk combined with their willingness to trust others, and their investments in risky assets. Individuals who display either risk tolerance alone or – to a lesser extent – risk aversion and trust more frequently decide to buy risky assets. The comparison between Scandinavian and Mediterranean countries indicates that trust plays qualitatively different roles depending on the prevailing combination of risk attitude and trust in the area being studied.     

Designing flexible work practices for job satisfaction: the relation between job characteristics and work disaggregation in different types of work arrangements

The literature on flexible work practices has not yet evaluated in detail how the characteristics of a job affect job satisfaction. This study makes a distinction between two types of flexible work practices according to their aims: the accommodation of employees’ personal lives (employment practice) and the operational reasons of a firm (work practice). Based on this distinction, we studied how the characteristics of a job, which reflect the use of ICT to support the spatial disaggregation of business processes, influence the relationship between the two types of flexible work practices and job satisfaction. We show, through a survey conducted on 987 workers, that the characteristics of a job that favour work disaggregation positively moderate the influence of flexible work as a work practice on job satisfaction, but they do not moderate the influence of flexible work as an employment practice. The implications for managers, workers and scholars are discussed.     

Minimum Quality Standards and Collusion

We model the introduction of a minimum quality standard in a vertically differentiated duopoly. We extend the literature by determining the standard endogenously, showing that the maximisation of social welfare entails an increase in the surplus accruing to consumers served by the low quality firm and a decrease in the surplus of the remaining consumers. Then, we consider the effects of the standard on the stability of price collusion, proving that the standard makes it more difficult for firms to collude if consumers are sufficiently rich.     

The Evaluation of Innovation Capabilities in Small Software Firms: A Methodological Approach

This paper presents a methodological approach for the evaluation of innovation capabilities in small software firms. The methodology is based on the assumption of a relationship between specific resources managed by small software firms and their innovation capabilities. Within the proposed methodological approach, a model for the quantitative analysis of innovation capabilities is presented. In order to show how the methodology can be applied to concrete situations, three case studies of small firms operating in the software sector and information services are presented and discussed.     

Funding Gaps? Access To Bank Loans By High-Tech Start-Ups

This paper aims to shed new light on start-up financing of new technology-based firms (NTBFs) and the existence of credit constraints that may negatively affect their activity. For this purpose, we analyze the different sources of start-up financing used by NTBFs and investigate several characteristics that may influence the extent of recourse to bank loans. In the empirical section, we consider a sample composed of 386 Italian NTBFs that operate both in manufacturing and services. We estimate double-censored tobit and bivariate tobit models so as to highlight the determinants of (i) the financial leverage, measured by the ratio of bank debt to total capital, and (ii) the amounts of personal capital and bank loans of firms at start-up, respectively. Our findings support the view that the credit market is imperfect and there exists a financing hierarchy. In fact, only a minority of firms resorts to outside financing, and especially to bank debt. In addition, the level of financial leverage is not random; it increases with an increase of the predicted amount of firms’ total initial capital, while it decreases with variables such as the number of owners and the work experience of founders that are indicative of greater personal wealth available to finance firms’ start-up. Lastly, the size of the bank loans obtained by firms generally is small and it is quite insensitive to demand-side factors that instead determine the amount of personal and total capital, with the notable exception of scale economies in the industry of the start-up. In other words, in accordance with the argument that credit to NTBFs is rationed, the loan supply curve is highly inelastic, even though not perfectly so.     

Modelling multivariate skewness in financial returns: a SGARCH approach

Skewness of financial time series is a relevant topic, due to its implications for portfolio theory and for statistical inference. In the univariate case, its default measure is the third cumulant of the standardized random variable. It can be generalized to the third multivariate cumulant that is a matrix containing all centered moments of order three which can be obtained from a random vector. The present paper examines some properties of the third cumulant under the assumptions of the multivariate SGARCH model introduced by De Luca, Genton, and Loperfido [2006. A multivariate skew-GARCH model. Advances in Econometrics 20: 33–57]. In the first place, it allows for parsimonious modelling of multivariate skewness. In the second place, all its elements are either null or negative, consistently with previous empirical and theoretical findings. A numerical example with financial returns of France, Spain and Netherlands illustrates the theoretical results in the paper.