Refer to the information above. The labor force is

Compared to the 1910-1960 period, economic fluctuations during the past 50 years have been less severe. Most economists believe that this increased stability is primarily the result of

a. more stable monetary policy. b. the smaller budget deficits of recent decades. c. regulations that promoted more affordable housing. d. greater stability of stock prices as measured by the Dow Jones Industrial Average.

The assumption that nothing changes EXCEPT the variables being studied is

A) the ceteris paribus assumption. B) the rationality assumption. C) positive economic analysis. D) normative economic analysis.