例3:能源的需求:计算结果见教材p187188 Table 9-3 Energy demand in OECD countries, 1960-1982 Year Final demand Real GDP Real energy price 54.1 1961 554 564 1124 1962 585 594 111.1 61.7 110.2 636 659 1090 1965 695 1083 1966 703 732 1053 1967 73 75.7 1054 1968783 799 1043 838 197088.9 862 97.7 1971 918 898 1003 1972 986 1973 1000 100.0 100.0 1014 1975 935 100.5 131.0 1976 99.1 1053 1296 1009 1099 1078 1144 1979 1069 118.3 144.5 1980 1012 1196 1790 1981 98.1 121.1 1894 120.6 1909 Source: Richard D. Prosser, "Demand Elasticities in OECD Dynamic Aspects, Energy Economics, January 1985, p 10
例3：能源的需求：计算结果见教材p187-188 Table 9-3 Energy demand in OECD countries, 1960-1982
■94如何测度增长率:半对数模型 ■9.41瞬时增长率与复合增长率 942线性趋势模型 例子见下
9.4 如何测度增长率：半对数模型 9.4.1 瞬时增长率与复合增长率 9.4.2 线性趋势模型 例子见下
例9-4:美国人口增长率 Table 9-4 Population of United States(millions of people), 1970-1999 U.S. Population TIME U. S Population TIME 205052 238466 207.661 240.651 209896 242.804 6789 211909 245.021 213854 247.342 215973 249.948 218035 252639 220239 23456789 255.374 222585 258.083 225055 227.726 229966 0123 260.599 263.044 265463 232.188 268.008 224567890 234.307 14 270.561 236348 273.131 Note:1970=1:1999=30 Source: Economic Report of the President, 2000, p. 345
例9-4：美国人口增长率 Table 9-4 Population of United States (millions of people), 1970-1999
应用半对数模型 Scatterplot of Logpop vs Time 5.65 5.60 55 545 5.40 535 5.30 Til Ime Fig 9-3 Semilog model
应用半对数模型 Fig 9-3 Semilog model