model, which includes an entire economy.

Consider, for example, the effect of a tariff on imported French wine. Partial equilibrium would look at just that market, and show that the price would rise. It would ignore the fact that if French wine became more expensive, demand for domestic wine would rise, pushing up the price of domestic wine, which would feed back into the market for French wine. If the feedback were included, the higher domestic price would shift out the demand curve for French wine,