Effects of Income and Price on Household’s Charcoal Consumption in Three Cities of Tanzania

Table 1

Transformed and untransformed mean values and standard deviations (SD) of the data input used in the regression analysis for the total sample and distributed on income classes (C, P, I, and H as defined in equation (1)).

			Consumption (C)	Income (I)	Price (P)	Household size (H)
Log-transformed	Mean	All	4.83	13.72	6.14	1.58
		Low income	4.82	12.53	6.17	1.53
		Medium income	4.85	13.96	6.04	1.56
		High income	4.80	15.24	6.29	1.70
	SD	All	0.51	1.18	0.37	0.44
		Low income	0.52	0.69	0.36	0.45
		Medium income	0.53	0.94	0.36	0.45
		High income	0.45	0.61	0.37	0.35
Untransformed	Mean	All	141.90	1,766,337	496.79	5.31
		Low income	141.92	346,735	510.14	5.07
		Medium income	146.05	1,349,851	446.17	5.28
		High income	133.58	4,998,634	575.48	5.77
	SD	All	72.50	2,338,354	198.11	2.23
		Low income	74.97	257,798	193.63	2.21
		Medium income	76.24	841,334	175.32	2.39
		High income	59.65	3,160,864	220.69	1.85