例句與造句

1. Strangely enough, although the title of the chapter of " General theory " is " Principle of effective demand ", the " principle " of effective demand is not stated in detail in the chapter.
2. The theoretical foundation of post-Keynesian economics is the principle of effective demand, that demand matters in the long as well as the short run, so that a competitive market economy has no natural or automatic tendency towards full employment.
3. Regarded widely as the cornerstone of Keynesian thought, the book challenged the established classical economics and introduced important concepts such as the consumption function, the multiplier, the marginal efficiency of capital, the principle of effective demand and liquidity preference.
4. It's difficult to find principles of effective demand in a sentence. 用principles of effective demand造句挺難的