By endogenizing politicians’ behavior, political economy disempowers policy analysts. It is as if physicists came up with theories that explained not only natural phenomena, but also determined which bridges and buildings engineers would build.
但政治经济和政策分析之间的关系与此大相径庭。将政客行为内生化后，政治经济学让政策分析者束手无策。这就好比是物理学家的理论不仅解释了自然现象，还决定了工程师能够建造那些桥梁和大厦。这样一来，就完全没必要开办工学院了。