…, certain features of specification of preferences are tied to basic growth observations for the U.S. economy. There is evidence that per capita leisure increased steadily until the 1930s. Since that time, and certainly for the postwar period, it has been approximately constant. We also know that real wages (defined as real average hourly rotal compensation[償い・埋め合わせ・代償・給与] ), including benefits and contributions for social insurance) have increased steadily in the postwar period. Taken together, these two observations imply that the elasticity of substitution between consumption and leisure should be near unity. ...
