The weakness of the inducement to invest has been at all times the key to the economic problem.

投资诱因的弱化一直是经济问题的关键。

For every small fluctuation in the propensity to consume and the inducement to invest would cause money-prices to rush violently between zero and infinity.

因为消费倾向和投资动机的每一次微小波动都会导致货币价格在零和无穷大之间剧烈波动。

The theories which we have examined above are directed, in substance, to the constituent of effective demand which depends on the sufficiency of the inducement to invest.

我们上面考察的理论实质上针对的是有效需求的构成要素，它取决于投资诱因的充分性。

The effective demand associated with full employment is a special case, only realised when the propensity to consume and the inducement to invest stand in a particular relationship to one another.

与充分就业相关的有效需求是一个特例， 只有当消费倾向和投资动机之间存在特定关系时才会实现。

Thus, apart from the necessity of central controls to bring about an adjustment between the propensity to consume and the inducement to invest, there is no more reason to socialise economic life than there was before.

因此，除了需要中央控制来调整消费倾向和投资诱因之外，没有比以前更多的理由使经济生活社会化。