A. the charities economy
B. the demand side of the economy
C. the underground economy
D. the supply side of the country
A. Horizontal
B. vertical
C. downward slog
D. elastic
A. Interest payments on external debts
B. repayments of external debt
C. none of these
D. Both of them
A. When the economy is at the natural rate of unemployment
B. When the economy is at the natural rate of investment
C. When the economy is at the natural rate of aggregate demand
D. When there is no no unemployment
A. Internet commerce
B. Web commerce
C. Computer commerce
D. Electronic commerce
A. marginal rate of factor substitution
B. marginal rate of substitution
C. law of diminishing marginal returns.
D. marginal rate of production
A. Lagos (Nigeria)
B. Riyadh (Saudi Arabia)
C. Tabriz (Iran)
D. Abadan (Iran)