Under which circumstances do oligopolists have an incentive to share private information about a stochastic demand or stochastic costs? We present a general model which includes virtually all models of the existing literature on information sharing as special cases. The analysis reveals that in...

Centrally planned Beveridge healthcare systems typically rely heavily on local or regional "health authorities" as responsible organisations for the care of geographically defined populations. The frequency of reorganisations in the English NHS suggests that there is no compelling unitary...