Cold Houses in Warm Climates and Vice Versa: A Paradox of Rational Heating
证明寒冷地区房屋冬季比温暖地区更暖，尽管供暖成本更高，但这是理性的，源于平均成本与边际成本的混淆，并指出恒温器设定应恒定而非随外部温度变化。
Houses in cold climates are kept warmer in winter than those in warm climates, des pite the greater cost of heating in colder climates. It is shown that this is not only consistent with, but also implied by, rationality. The contrary intuition is based on a confusion between average and ma rginal cost. The same analysis implies that it is rational to keep th e thermostat setting constant throughout the heating season rather th an changing it with changes in external temperature. Copyright 1987 by University of Chicago Press.