This paper develops a search and matching model of equilibrium unemployment, with on-the-job search, extended to both the informal sector and entrepreneurship. Three are the key features of this model: the entrepreneurial ability affects job productivity, all unemployed start their job search in...

A matching model will explain both unemployment and economic growth by considering the underground sector. Three problems can thus be simultaneously accounted for: (i) the persistence of underground economy, (ii) the ambiguous relationships between underground employment and unemployment, and...

This paper develops a labour market matching model in order to address the problem of the persistence of the hidden sector and of its regional concentration, as in Italy and in the enlarged Europe. The main novel features of the model are that entrepreneurial ability affects job productivity,...

This paper develops a standard matching model to address the problem of the hidden sector (including non-registered firms but producing for legal markets), as it is characterised in Italy, i.e. framed in a rather advanced economic and institutional setting, but also linked to the socio-economic...

Economic growth and unemployment exhibit an ambiguous relationship – according to empirical studies. This ambiguity can be investigated by observing the role of the underground economy in shaping the productivity of firms. Indeed, unemployment may be absorbed by underground firms, which adopt...

This paper incorporates tax morale into a search and matching model of equilibrium unemployment, with on-the-job search, extended to both the irregular sector and entrepreneurship. Tax morale is modelled as a social norm for tax compliance which renders evasion costly. The moral cost of tax...

How and why does the firm size distribution differ across countries? Using two datasets covering more than 30 countries, this paper documents that several features of the firm size distribution are strongly associated with income per capita: the entrepreneurship rate and the fraction of small...

In contrast to the very large literature on skill-biased technical change among workers, there is hardly any work on the importance of skills for the entrepreneurs who employ those workers, and in particular on their evolution over time. This paper proposes a simple theory of skill-biased change...

Young and small firms are typically matched with younger and nonemployed individuals, and they provide these workers with lower earnings compared to other firms. To explore the mechanisms behind these facts, a dynamic model of entrepreneurship is introduced, where individuals can choose not to...

How and why does the firm size distribution differ across countries? Using two datasets covering more than 30 countries, this paper documents that several features of the firm size distribution are strongly associated with income per capita: the entrepreneurship rate and the fraction of small...