Naturally, the American Agricultural Economics Association was outraged and filed suit, but NIH presented some compelling reasons for the switch. NIH lab assistants become very attached to their rats. This emotional involvement was interfering with the research being conducted. No such attachment could form for an economist.
Economists breed faster.
Economists are much cheaper to care for and PETA won't object regardless of the experiment. There are some things even rats won't do. However, it is difficult to extrapolate test results to human beings. All rights reserved. All content and information is provided for entertainment purposes only.