Most types of networks, over time, spawn the creation of complementary stocks that enhance network value. Computer operating systems, for example, induce the development of the complementary stock of software applications that increase the value of the operating system. In this paper, we...

We use a multifactor asset pricing model for currency, bond and stocks for fourteen emerging markets over the period from 1997 to middle 2001 to investigate the effect of the exchange rate regime on the cost of capital, the integration of financial emerging markets and the issue of contagion. We...

It is commonly argued that in recent years pharmaceutical companies have directed their R&D towards small improvements of existing compounds instead of more risky drastic innovations. In this paper we show that the proliferation of these small innovations is likely to be linked to the lack of...

Social contacts help workers to find jobs, but those jobs need not be in the occupations where workers are most productive. Hence social contacts can generate mismatch between a worker's occupational choice and his comparative productive advantage. Thus economies with dense social networks can...

The aim of this paper consists of valuating a real biotechnology firm that is based on a portfolio of several drug development projects at different phases. They are patentprotected R&D projects and their values are obtained by implementing an extension of the real options approach in Schwartz...

One of the strengths of structural models (or firm-value based models) of credit (e.g. Merton, 1974) as opposed to reduced-form models (e.g. Jarrow and Turnbull, 1995) is that they directly link the price of equity to default probabilities, and hence to the price of corporate bonds (and credit...

This paperanalyzes the current trend towards firms' self-regulation as opposed to the formal regulation of a negative externality. Firms respond to increasing activism in the market (conscious consumers that take into account the external effects of their purchase) by providing more socially...

We analyse the Generalised Hyperbolic distribution as a model for fat tails and asymmetries in multivariate conditionally heteroskedastic dynamic regression models. We provide a standardised version of this distribution, obtain analytical expressions for the log-likelihood score, and explain how...

In this paper we provide a simple new version of Arrow’s impossibility theorem, in a world with only one preference profile. This theorem relies on a new assumption of preference diversity, and we explore alternative notions of preference diversity at length.

This paper analyses the gender wage gaps by education throughout the wage distribution in Spain. Quantile regressions are used to estimate the wage returns to the different characteristics at the more relevant percentiles. A correction for the selection bias is included for the group of less...