Production functions provide a mapping from the firms' input quantity and productivity to output quantity. This mapping only generates unbiased estimates if input and output quality variation within and between observation units is accounted for. I review and classify state-of-the-art methods to...

This paper examines the publication of quality indicators in service markets with public finance systems, such as education and healthcare markets. We provide a spatial model of product differentiation in which the reporting of such indicators increases consumers’ decision weight on quality...