[经] oversaving theory of business cycle

jīng jì zhōu qī de guò fèn chǔ xù lǐ lùn ㄐㄧㄥ ㄐㄧˋ ㄓㄡ ㄑㄧ ㄉㄜ˙ ㄍㄨㄛˋ ㄈㄣˋ ㄔㄨˇ ㄒㄩˋ ㄌㄧˇ ㄌㄨㄣˋ