這裡像你這麼用功的人似乎不多了...

我離教科書已經很遠了，不過教科書以外的書看的還算不少，至於是哪本書提到的我也記得不是很清楚了...

不過上個月經濟學人雜誌上有提到一篇(如下)有類似的概念，只是它是從國家政策層面切入，提供給你參考一下：

Experience suggests that some policies are better than others. If you want to increase competitiveness, productivity growth is less disruptive than wage cuts, and wage cuts are better than unemployment.

http://www.economist.com/node/21536870