1. P0P0 P Keynes P Ohlin E0E0 4 4 S0S0 S0S0 D0D0 S1S1 S1S1 D0D0 D1D1 D1D1 Quantity Price Figure 2.1 0

2. 0 Figure 3.1 wheat meat

3. good y good x TxTx TyTy 0 Figure 3.2 uBuB PBPB CBCB

4. O A1 B1 B2 A2 B3 A3 p3p3 p2p2 p1p1 good 1 good 2 Figure 3.3

5. u B = 12 u C = 7.5 u A = 12 3 3 7.5 12 7.5120Lemons15 Grapes Figure 6.1 budget constraint

6. D0D0 D1D1 u0u0 u0u0 u1u1 u1u1 good y good x 0 Figure 8.1

7. M R, L Figure 9.1 0

8. M R, L Figure 9.2 0

9. Figure 10.1

10. Figure 10.2

11. c1c1 c2c2 0 linear Cobb-Douglas Leontief Figure 11.1