In this paper we consider several time-varying volatility and/or heavy-tailed models to explain the dynamics of return time series and to fit the volatility smile for exchange-traded options where the underlying is the main �Borsa Italiana� stock index. Given observed prices for the...

Most of the important models in finance rest on the assumption that randomness is explained through a normal random variable because, in general, the use of alternative models is obstructed by the difficulty of calibrating and simulating them. In this paper, we empirically study models for...

During the recent global recession both the export-oriented northern Italian regions and those in the far less open South experienced a sharp decline in economic activity. One of the possible explanations is the existence of strong domestic linkages propagating foreign demand shocks from North...

We study the effects of the world economic crisis which began in 2007 on the Italian productive system. National accounts data are supplemented with information gathered in spring 2009 from the Bank of Italy�s survey on industrial and service firms, and from interviews with about 70 of...

This paper examines the problem of relaxing the exclusion restriction for the evaluation of causal effects in randomized experiments with imperfect compliance. Exclusion restriction is a relevant assumption for identifying causal effects by the nonparametric instrumental variables technique, in...

In this paper we focus on tenant rents in Italy and compare results from several methods for the rent dynamic estimation. We first document the sources of data available and then introduce quality-adjusted techniques, which enable us to separate the price variation due to qualitative changes in...

We consider a difference-in-differences setting with a continuous outcome, such as wages or expenditure. The standard practice is to take the logarithm of the outcome and then interpret the results as an approximation of the multiplicative treatment effect on the original outcome. We argue that...

This paper studies the identification and estimation of treatment response with heterogeneous spillovers in a network model. We generalize the standard linear-in-means model to allow for multiple groups with between and within-group interactions. We provide a set of identification conditions of...

We use the last two waves of the Italian Time Use Survey to analyse the intergenerational transmission of reading habits. This can be explained by both cultural and educational transfers from parents to children and by imitative behaviour. Imitation is of particular interest, since it suggests...

We look at business survey data on Italian internationalized firms’ characteristics and performances since the outbreak of the 2008 crisis until 2012. Among Italian firms with 20 employees or more, an increasing share (from 7.1 to 13.2% between 2006 and 2011) owns a foreign productive unit....