The opening of the residential UK electricity sector in 1999 motivated several studies of its impact on both the level and structure of retail charges, and on incumbents’ market power. Using regional observations on tariffs offered in January 2004, the present paper supports previous results...

The residential UK electricity market was opened for the first time in 1999, introducing choice of supplier, and about 40% of households changed supplier in the first four years. After three years price caps were removed. We review this process and assess the competitiveness of the market by...

In most liberalised electricity retail markets, incumbent firms still hold the majority of residential consumers. This situation focused the attention of regulatory institutions and energy economists on the determinants of consumers switching decisions. Fewer studies have, however, been devoted...