a. Some recent work by economists on the sources of growth suggests that institutions such as the _ and the _ play key roles in economic growth. b. A road map incorporates two...

a. Some recent work by economists on the sources of growth suggests that institutions such as the _________ and the _________ play key roles in economic growth.

b. A road map incorporates two unrealistic assumptions:

(1) _________ and (2) _________.