The supply shock that hit the Nordic electricity market in 2002-2003 put the market to a severe test. A sharp reduction in inflow to hydro reservoirs during the normally wet months of late autumn pushed electricity prices to unprecedented levels. We take this event as the starting point for...

In this paper we analyse individual vocational rehabilitation clients’ decisions to enter active training or not. Although the Government pays the direct costs of training, the composition of the total costs of training may be decisive for individual choices. Based on labour market theory, we...

Pooling and exchange of random resources may offer the owners insurance and substitution. Greater efficiency and more stable revenues thereby obtain. These good properties derive from a sharing rule that complies with the core concept from cooperative production games. It is applied here to...

In this paper we investigate the incentives of unemployed workers to wait for a recall when recall probabilities are endogenously determined by the waiting decisions of others. Because of a positive externality that arise when workers seek new employment, an excessive number of workers choose to...

There is concern that prices in a market for Green Certificates (GCs) primarily based on volatile wind power will fluctuate excessively, leading to corresponding volatility of electricity prices. Applying a rational expectations simulation model of competitive storage and speculation of GCs the...

In this paper we analyse early retirement for men and women focusing on family characteristics such as marital status, spouse income and wealth, and spouses’ labour market status. The female participation rate is high in Norway, implying that the country is particularly suitable for the study...

We consider the effects of international environmental agreements, using the Sofia Protocol on the reduction of nitrogen oxides. Our analysis utilizes panel data from 25 European countries for the period 1980–96. We divide these countries into “participants” and...

We analyse how the internal organisation of firms affects the correspondence between private and social incentives for horizontal merger. Applying a model of endogenous merger formation in a three-firm asymmetric Cournot industry, we contrast the cases of entrepreneurial and managerial firms....

We analyze the dynamic interaction between imitation and myopic optimization in an environment of changing marginal payoffs. Focusing on finite irreducible environments, we unfold a trade-off between the degree of interaction and the size of environmental shocks. The optimizer outperforms the...

In a non-cooperative oligopoly model where firms use simple linear prices, Klemperer (1987) has shown that the existence of consumers’ switching costs may generate monopoly like prices, and thereby create substantial loss in welfare. We show that when allowing firms to use two-part tariffs,...