摘要 : This paper considers the simple neoclassical economics of price gaps in the absence of income effects. Our guiding principle is that price gaps reflect a fundamental economic principle: buy low and sell high. It is demonstrated th... 展开 This paper considers the simple neoclassical economics of price gaps in the absence of income effects. Our guiding principle is that price gaps reflect a fundamental economic principle: buy low and sell high. It is demonstrated that neoclassical theory makes clear and economically testable predictions about these price gaps. 收起