We study the effect of a shock on firms’ costs in a general setting by considering both perfect and imperfect competition and a general cost function. We show that, counterintuitively, firms’ profits may increase with cost increases. We generalize Seade’s (1985) results by considering the...

In a non-renewable resource market with imperfect competition, both the resource rent and current prices influence a large resource owner's optimal supply. New information regarding future market conditions that affect the resource rent will consequently impact current supply. Bleaker demand...