Research Article

Valuation of Guaranteed Maximum Price Contracts in Korea Using the Collar Option Model

Table 7

Fluctuation of K-ratio under various conditions.

GMP (million $)Range (%)Expected cost (million $)
50.050.551.051.552.0

52.00.05–99.950.3910.4600.5240.5660.609
0.50–99.500.2950.3540.4030.4550.512
2.50–97.500.1730.2160.2650.3210.388
5.00–95.000.1040.1380.1770.2260.289
7.50–92.500.0550.0750.1010.1350.183

52.50.05–99.950.3690.4340.4960.5350.575
0.50–99.500.2650.3190.3630.4100.461
2.50–97.500.1360.1700.2080.2520.305
5.00–95.000.0620.0820.1050.1340.172
7.50–92.500.0080.0110.0150.0200.028

53.00.05–99.950.3480.4090.4670.5040.542
0.50–99.500.2360.2840.3220.3640.410
2.50–97.500.0990.1240.1510.1830.222
5.00–95.000.0200.0260.0340.0430.055
7.50–92.500.0000.0000.0000.0000.000

53.50.05–99.950.3260.3840.4380.4720.509
0.50–99.500.2060.2480.2820.3190.359
2.50–97.500.0620.0770.0950.1150.139
5.00–95.000.0000.0000.0000.0000.000
7.50–92.500.0000.0000.0000.0000.000

54.00.05–99.950.3050.3590.4090.4410.475
0.50–99.500.1770.2130.2420.2730.308
2.50–97.500.0250.0310.0380.0460.056
5.00–95.000.0000.0000.0000.0000.000
7.50–92.500.0000.0000.0000.0000.000