The log normal reserving model is considered. The contribution of the paper is to derive explicit expressions for the maximum likelihood estimators. These are expressed in terms of development factors which are geometric averages. The distribution of the estimators is derived. It is shown that...

While making a statistical model it is important both, to find a theoretical distribution function that would characterize empirical frequency distribution and to choose a suitable method of parameter estimate of such model. Recently used type of a theoretical model of income distribution (the...

It is a widely held belief that apprenticeship training represents a net investment for training firms, the cost of which needs to be recouped after the training period. A new firm-level dataset for Switzerland reveals large variation in net costs across firms and, remarkably, negative net costs...

It is a widely held opinion that apprenticeship training represents a net investment for training firms, and that therefore firms only train if they have the possibility to recoup these investments after the training period. A recent study using a new firm-level dataset for Switzerland showed,...

It is a widely held opinion that apprenticeship training represents a net investment for training firms, and that therefore firms only train if they have the possibility to recoup these investments after the training period. A recent study using a new firm-level dataset for Switzerland showed,...

It is a widely held opinion that apprenticeship training represents a net investment for training firms, and that therefore firms only train if they have the possibility to recoup these investments after the training period. A recent study using a new firm-level dataset for Switzerland showed,...

While making a statistical model it is important both, to find a theoretical distribution function that would characterize empirical frequency distribution and to choose a suitable method of parameter estimate of such model. Recently used type of a theoretical model of income distribution (the...

The paper evaluates the German health care reform of 1997, using the individual number of doctor visits as outcome measure and data from the German Socio- Economic Panel for the years 1995-1999. A number of modified count data models allow to estimate the effect of the reform in different parts...