What are the two primary topics studied by macroeconomics?

Financial information that is capable of making a difference in a decision is

Suppose an economy has only two sectors: goods and services. each year, goods sells 80% of its outputs to services and keeps the rest, while services sells 62% of its output to goods and retains the rest. find equilibrium prices for the annual outputs of the goods and services sectors that make each sector's income match its expenditures.

How are interest rates calculated by financial institutions? financial institutions generally calculate interest as (1) interest or (.