We examine if the Nordic power market, Nord Pool, has been competitive or if electricity suppliers have had market power. Specifically, since the evolution from national markets to a multi-national and largely deregulated power market has taken place stepwise, we also examine how the degree of...

The paper empirically explores the electricity price dynamics in the Nordic electricity market, Nord Pool. In particular, the focus is on determining what effect the multinational market integration, during the years 1996-2006, has had on the conditional mean electricity price, its volatility,...

This thesis consists of four self-contained papers related to the Nordic electricity market. Paper [I] examine how the reform of the Nordic electricity markets has affected competition in the electric power supply market, Nord Pool. The question is if the common power market has been competitive...

The paper empirically explores the possible causes behind electricity price jumps in the Nordic electricity market, Nord Pool. A time-series model (a mixed GARCH–EARJI jump model) capturing the common statistical features of electricity prices is used to identify price jumps. By the model, a...

The deregulation of the Swedish electricity market in 1996 affected both the market design and the pricing of electricity. Since 1996, the electricity price faced by consumers has increased dramatically. Due to the high electricity price and large company profits, a debate about the success of...

It is shown in this letter that the magnitude of exchange rate overshooting is larger than in Dornbusch (1976) when chartists are introduced into the model. Also, the extent of overshooting depends inversely on the planning horizon. The latter follows from explicitly modelling the empirical...

We show that the Matthew effect, or Matthew mechanism, was present in the artificial cultural market Music Lab when social influence between individuals was allowed, whereas this was not the case when social influence was not allowed. We also sketch on a class of social network models, derived...

The aim of this article is to demonstrate how the change in actual and potential market risks in the Dow Jones Industrial Average (DJIA) during the 2-year period 2007 to 2008 can be analysed with the help of (<italic>λ</italic>, <italic>σ</italic> -super-2)-analysis. In the empirical analysis, the average of the Lyapunov...

We show that the Matthew effect, or Matthew mechanism, was present in the artificial cultural market Music Lab in one-fourth of the “worlds” when social influence between individuals was allowed, whereas this effect was not present in the “world” that disallowed social influence between...