A one dimensional diffusion process X={X_t, 0 <= t <= T}, with drift b(x) and diffusion coefficient s(theta, x)=sqrt(theta) s(x) known up to theta>0, is supposed to switch volatility regime at some point t* in (0,T). On the basis of discrete time observations from X, the problem is the one of estimating the instant of change in the volatility structure t* as well as the two values of theta, say...</=>

The telegraph process models a random motion with finite velocity and it is usually proposed as an alternative to diffusion models. The process describes the position of a particle moving on the real line, alternatively with constant velocity +v or -v. The changes of direction are governed by an...

We propose the setting-up of an indicator for classifying European countries with relation to consumers' satisfaction for services of general interest. Services considered are fixed telephone service, electricity supply, railways and postal service. The reference data set is the 2002 Standard...

In this paper we derive explicit formulas of the R\'enyi information, Shannon entropy and Song measure for the invariant density of one dimensional ergodic diffusion processes. In particular, the diffusion models considered include the hyperbolic, the generalized inverse Gaussian, the Pearson,...

This paper investigates the effect of real assets as collateral on the economy. I construct a model that shows how credit rationing is mitigated by the existence of bad firms whether it is linked to the value of distressed assets. Indeed, when loans are collateralized and firms are credit...

The standard electricity industry reform paradigm in several EU countries since the 1990s includes privatization, unbundling, liberalization. While the implementation and design of reforms widely differs across the EU, the European Commission insists on a rather unified approach, aiming at the...

This paper examines the importance of the ability of high-educated individuals on the growth rate. I consider two sources of heterogeneity among individuals: ability and consumption value of education. The latter is assumed to depend on family background and will thus generate different ability...

This paper explores the identity formation of a cohort of students with immigrant backgrounds in Sweden and the consequences of identity for subsequent labor market outcomes. Unique for this study is that identity is defined according to a two-dimensional acculturation framework based on both...

We study the size of government and of GDP, under autocratic and democratic rule, respectively. It turns out that first, both democratic and authoritarian rulers apply the Samuelson (1954) criterion when deciding on productive public goods. Second, the labor supply elasticity and the skewness of...

We analyze the consequences for sickness absence of a selective softening of job security legislation for small firms in Sweden in 2001. According to our differences-in-difference estimates, aggregate absence in these firms fell by 0.2-0.3 days per year. This aggregate net figure hides important...