This paper shows that the individual welfare losses due to the exercise of market power in the service sectors are greater in relative terms for the consumers with higher incomes. However, after adding to those results the ones obtained for the case of consumer goods sold in non-competitive...

This paper compares the evolution of income (GDP per capita) with utility derived welfare indices for two Mexican regions from 1992-2000. A methodology is proposed based on implicit true standard of living indices. Results show that welfare dynamics differed between regions and varied...