Various literatures mention that an increasingly concentrated market will have an impact on performance. This study aims to analyze the influence of market structure on the profitability of the Islamic banking industry in Indonesia, especially after the enactment of the Islamic banking act. This...

How does competition in firms' product markets influence stock returns? We examine this question using firms domiciled in the UK. We find that firms in less concentrated industries earn higher returns, even after controlling for the well-known determinants of the cross-section of UK stock...

This paper examines retail grocery price levels with a very large (unbalanced) panel of stores that operate in well-defined local markets. We explain price variation across grocery retailers by the concentration of wholesalers and retailers, and the market share of hypermarkets (and control for...

We study the dual relationship between market structure and prices and between market structure and investment in mobile telecommunications. Using a uniquely constructed panel of mobile operators’ prices and accounting information across 33 OECD countries between 2002 and 2014, we document...