This paper revisits barriers to exit, explores their different definitions in the literature and identifies what these have in common. It then analyses the different ways in which such barriers to exit can affect allocative efficiency and competition while assessing their impacts by looking at...

Economic analysis is central to effective merger review. This paper was prepared as background for a discussion on Economic Analysis in Merger Investigations held at the 2020 OECD Global Forum on Competition.

Fewer 15-year-olds in East Asian countries reported that they use memorisation than did 15‑year‑olds in some of the English-speaking countries to whom they are often compared. In no PISA-participating education system did boys report more intensive use of memorisation than girls when...

Some 65% of socio-economically advantaged students reported that they know well or have often heard of the concept of quadratic function, on average across OECD countries; but only 43% of disadvantaged students so reported. On average across OECD countries, the 20% of students who are most...