Macroeconomics in NEB Class 12 requires precise definitions of national accounting aggregates and graphical exposition of aggregate demand and supply.
1. National Income Measurement Traps
Ensure you distinguish between transfer payments (pensions, gifts) which are excluded from GDP, and factor payments (wages, rent, interest, profit) which are included. Always define GDP at factor cost vs market price with net indirect taxes.
2. Keynesian Investment Multiplier ($K = \frac{1}{1 - MPC}$)
Draw the two-sector $45^\circ$ equilibrium line with $C + I$ curves. Clearly demonstrate the step-by-step expansion of income resulting from autonomous investment injections.
