Appropriately designed Product Market Regulation (PMR) is essential to enhance productivity, boost economic growth and increase welfare. Regulation is needed to address market failures and guarantee the health and safety of consumers. However, by limiting the entry and expansion of firms, a too...

The increased adoption of digital technologies has been transforming the Spanish economy. The COVID-19 crisis is expected to speed up this process. The new digital strategy, ‘Digital Spain 2025’, features a number of ambitious objectives in a timely manner. There is a need to promote digital...

This paper examines problems of entry, exit and competition in Ukrainian product markets. It finds that Ukraine still has too little of all three, and that exit mechanisms, in particular, function poorly. Since impediments to entry and exit are largely the product of excessive and ill...

This paper examines problems of entry, exit and competition in Ukrainian product markets. It finds that Ukraine still has too little of all three, and that exit mechanisms, in particular, function poorly. Since impediments to entry and exit are largely the product of excessive and ill...

Laitinen (1980) derives an input allocation model for a multiproduct firm that first maximizes revenue and second maximizes profit. While theoretically elegant, the model has never been formulated empirically because of the complexity of the model’s price-deflated terms. This paper derives the...

This paper studies the impact of relative performance evaluation (RPE) on the equilibrium locations in a Hotelling model with quadratic transportation cost. It is shown that equilibrium location varies from maximum differentiation to minimum differentiation, depending upon the relative strength...

Digital markets have raised a number of new competition challenges. Ex-post competition policy appears not to be able to address them in their entirety and with the necessary speed. There is considerable consensus, among academics and policy-makers, that ex-ante regulatory policies are needed to...

A competition-friendly business regulatory environment is essential for the well-functioning of markets. It ensures that important policy goals are addressed, and market failures tackled. However, regulation can also create barriers to the entry and expansion of firms that may limit and distort...

Appropriately designed and implemented regulations are powerful tools for enhancing economic performance. A strong and sound regulatory framework can mitigate threats to health, safety, and the environment and address market imperfections. However, regulation can also create barriers to the...

I develop a semi-structural approach to identify network effects on two-sided monopoly platforms without data on prices and quantities. When total revenue data is available, the test is sufficient. When separate revenue data is available on the two sides, the test is both necessary and sufficient.