In a partial equilibrium setting without price uncertainty, the balanced-budget substitution of an ad valorem tax on … competitive market characterised by uncertainty about the commodity price, if firms can respond to the revelation of demand …

uncertainty has evolved since Mirrlees' original contribution. The literature on the income tax as a social insurance device is … more limited. It has largely assumed that households are ex ante identical so unequal earnings are due to uncertainty alone …. We provide a general treatment of the optimal income tax under uncertainty when households differ in ability. We …

Applying a framework of perfect competition under uncertainty, we contribute to the discussion of whether or not ad … valorem taxes and specific taxes are equivalent. While this equivalence holds without price uncertainty, we show that ad … valorem taxes and specific taxes are “almost never” equivalent in the presence of uncertainty if we demand equivalence to hold …