Let us call k the investment multiplier.

让我们称 k 为投资乘数。

Taken in conjunction with estimates of national income these suggest, for what they are worth, both a lower figure and a more stable figure for the investment multiplier than I should have expected.

结合对国民收入的估计， 这些数字表明， 就它们的价值而言， 投资乘数的数字比我预期的要低， 而且更稳定。