A useful macroeconomic model a. is simple. b. is extremely realistic. c. never generates testable hypotheses. d. provides a lot of intricate details.

The correct answer is letter A

Macroeconomic models are very useful for short and medium term projections, but are not able to anchor the variables.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

i'm not sure what you are asking, but it also served as a debtors colony, was ran by the trustees for 20 years until becoming a royal colony, and people had restrictions such as no slaves, and only 50 acres of land per person/ hope this !

- jack watson