imperfect tests to find out about buildings’ damage types. The insurance market is a natural monopoly. If more than one insurer …. First we show that the natural insurance monopoly need not be sustainable. Then we show that in the equilibrium industry … structure the incumbent may accommodate entry even when the natural monopoly is sustainable. The theoretical findings are thus …

increases utility. It is assumed that each variety is owned by a monopoly. Workers can specialise in material goods production … their bliss point can only be made better off by an increase in diversity. If wages are set by monopoly unions rather than …

, it later 'tips' to monopoly, after which entry is hard, often even too hard given incompatibility. And while switching …

upstream monopolist to limit output to monopoly levels, whereas a disintegrated structure will ‘over-sell’, producing more in … is, supply less than their monopoly output. Low-cost firms continue to over-sell, so all types of firms have a reason to …