Field experiments have shown that information nudging can help households to save energy, however, the effectiveness varies depending on aspects such as information content, delivery mode and study area. This article evaluates the impacts of information nudges on residential electricity...

Electricity distribution network is a prime example of a natural local monopoly. In many countries, electricity distribution is regulated by the government. In Finland, the regulator estimates the efficient cost frontier using the data envelopment analysis (DEA) and stochastic frontier analysis...

In this study we combine different possibilities to model firm level heterogeneity in Stochastic Frontier Analysis. We show that both observed and unobserved heterogeneity cause serious biases in inefficiency results if left unmodelled. Modelling observed and unobserved heterogeneity treats...

This paper analyzes how firms with different financial strength levels respond to demand shocks in their export markets. We utilize unique administrative datasets of Swedish and Finnish firms matched with national customs data from 1999 to 2014, which allows us to analyze the effects of several...