چکیده:
The result of the model fitting shows: price and income elasticities in the long run are -0.97 and -1.22, and in the short run are -0.22 and -0.54. Gas, as a substitute good, has a negative coefficient in the model, which indicates that despite its price decrease, electricity consumption has increased, indicating simultaneous consumption of gas and electricity. One reason for this could be the generation of heat during gas use for cooking, use of lamps and water heating, and consequently the use of cooling and ventilation devices to lower the ambient temperature in the hot months of the year (about 7 months). By comparing the price and income elasticities of residential electricity demand in Khuzestan province, it can be inferred that electricity demand is affected by pricing and income policies, and the impact of income policies is greater than that of pricing policies. Classical assumptions regarding the estimated models have also been examined in terms of stationarity, and these models are fully consistent with classical assumptions. Results
خلاصه ماشینی:
In this estimation, using the Ordinary Least Squares (OLS) method, elasticities were calculated, which indicated the inelasticity of electricity demand with respect to its price and income in both the short and long term, which has been attributed to government subsidies.
"Arsenault, Bernard and Laplante3" (1996) estimated the residential energy demand function of the province of Quebec4, Canada, during the years 1990 to 1996 using the OLS method.
"Silk and Jutz2" (1997) investigated electricity demand in the USA using data from the years 1934 to 1993 and obtained the residential electricity demand as a function of real electricity price, average daily temperature, interest rate, real oil price, and disposable income.
"Huas and Schipper3" (1998) estimated the residential energy demand for member countries of the Economic Cooperation and Development Council and presented it as a function of energy price (the weighted average price of four energy carriers: electricity, petroleum products, natural gas, and coal), real disposable income, and daily temperature, with a time lag for energy consumption.
The results indicate that the electricity demand function is inelastic with respect to changes in electricity price and household income.
As is evident, both models indicate inelasticity electricity demand with respect to income and price in the short term and its elasticity in the long term.
The results of the unit root test for the residual values indicate their stationarity (Table 9 is attached); therefore, the above equation represents the long-term residential electricity demand function in Khuzestan province.
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