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Table 1 Descriptive statistics

From: Determinants of efficiency in residential electricity demand: stochastic frontier analysis on Japan

Description Variable Mean Std. dev. Maximum Minimum
Electricity demand (106 kWh) ED 5315 5265 32,871 895
Real electricity rate (2005 = 100) P 107.86 7.93 136.17 94.75
Household real income (JPY, millions) IC 6.81 1.26 10.16 4.04
Household size (person) HS 2.82 0.32 3.69 2.00
Household floor area (m2) FA 101.16 19.54 152.90 56.81
Ageing population ratio (%) AG 19.11 4.21 28.96 8.45
Cooling-degree day CDD 366 175 1186 0
Heating-degree day HDD 1107 470 2769 0