Table AI. Summary statistics of the...

Table AI.

Summary statistics of the sampled cocoa farms

	All farms		Rainfed		Irrigated
Variable definition and measurement	Mean	SD	Mean	SD	Mean	SD
Socioeconomic variables
NRh (in Naira)	42,558.9 ($283.7)	46,774.8 ($311.8)	31,386.7 ($209.2)	17387.2 ($115.9)	45,339.1 ($302.3)	51,202.7($341.4)
Age of household head (years)	55.3	12.72	56.7	13.3	52.4	11.7
Education (years)	9.1	4.1	6.5	5.01	12.5	10.6
Farming experience (cocoa)	22.8	10.8	23	3.95	21.9	5.0
Household size (number of persons)	7.5	3.8	5.3	2.19	6.2	2.7
Agricultural variables
Total farm area (hectares)	6.5	4.8	5.3	2.2	7.9	5.3
Visit from extension worker (number)	2.5	2.6	2.6	2.9	2.2	2.4
Farm labor (cocoa farming)	2.9	2.1	3.6	2.8	2.3	2.2
Crop area (cocoa hectares)	2.4	1.0	1.4	1.4	1.6	1.0
Distance to urban market (km)	90.5	142.7	86.4	78.5	82.9	62.6
Aggregate measures (proportions)
% of farms headed by male	95.0		90.0		97.0
% of farmers with access to credit	33.6		39.0		37.0
% of farms that received subsidy	14.0		5.5		45.5
% of farms using suppl. irrigation	19.9		0		100
% of farmers keeping livestock	46.7		40.0		37.0
% of farms using pesticides	93.0		95.0		97.0
% of farms over 5 hectares	11.5		7.4		22.6
% of farms with extension contacts	66.0		56.9		55.6
% of farms on La soils	42.9		52.2		19.5
% of farms on Jc soils	28.7		21.3		46.2
% of farms on Li soils	14.2		14.2		25.6
% of farms on LVf soils	14.2		12.3		8.8
Climate variables
Monthly dry season temp. (°C)	32.4	4.82	28.6	1.12	28.9	1.05
Monthly rainy season temp. (°C)	25.7	1.13	25.1	0.91	24.5	0.82
Monthly Harmattan temp. (°C)	19.6	6.5	25.0	3.0	25.9	3.41
Monthly dry season precip. (mm)	46.7	33.9	37.3	23.8	33.7	21.15
Monthly rainy season precip. (mm)	169.0	15.9	139.2	28.4	150.7	22.9
Monthly Harmattan precip. (mm)	12.7	21.4	21.2	13.1	18	14.5
Control variables
Population density	251.9	19.93	251.7	19.9	252.3	20.4
Irrigation	19.9	0.40
Altitude (m)	1,238.8	139.3	1,217.3	146.3	1,332.8	110.2
Number of observations	280			224		56

	All farms		Rainfed		Irrigated
Variable definition and measurement	Mean	SD	Mean	SD	Mean	SD
Socioeconomic variables
NRh (in Naira)	42,558.9 ($283.7)	46,774.8 ($311.8)	31,386.7 ($209.2)	17387.2 ($115.9)	45,339.1 ($302.3)	51,202.7($341.4)
Age of household head (years)	55.3	12.72	56.7	13.3	52.4	11.7
Education (years)	9.1	4.1	6.5	5.01	12.5	10.6
Farming experience (cocoa)	22.8	10.8	23	3.95	21.9	5.0
Household size (number of persons)	7.5	3.8	5.3	2.19	6.2	2.7
Agricultural variables
Total farm area (hectares)	6.5	4.8	5.3	2.2	7.9	5.3
Visit from extension worker (number)	2.5	2.6	2.6	2.9	2.2	2.4
Farm labor (cocoa farming)	2.9	2.1	3.6	2.8	2.3	2.2
Crop area (cocoa hectares)	2.4	1.0	1.4	1.4	1.6	1.0
Distance to urban market (km)	90.5	142.7	86.4	78.5	82.9	62.6
Aggregate measures (proportions)
% of farms headed by male	95.0		90.0		97.0
% of farmers with access to credit	33.6		39.0		37.0
% of farms that received subsidy	14.0		5.5		45.5
% of farms using suppl. irrigation	19.9		0		100
% of farmers keeping livestock	46.7		40.0		37.0
% of farms using pesticides	93.0		95.0		97.0
% of farms over 5 hectares	11.5		7.4		22.6
% of farms with extension contacts	66.0		56.9		55.6
% of farms on La soils	42.9		52.2		19.5
% of farms on Jc soils	28.7		21.3		46.2
% of farms on Li soils	14.2		14.2		25.6
% of farms on LVf soils	14.2		12.3		8.8
Climate variables
Monthly dry season temp. (^°C)	32.4	4.82	28.6	1.12	28.9	1.05
Monthly rainy season temp. (^°C)	25.7	1.13	25.1	0.91	24.5	0.82
Monthly Harmattan temp. (^°C)	19.6	6.5	25.0	3.0	25.9	3.41
Monthly dry season precip. (mm)	46.7	33.9	37.3	23.8	33.7	21.15
Monthly rainy season precip. (mm)	169.0	15.9	139.2	28.4	150.7	22.9
Monthly Harmattan precip. (mm)	12.7	21.4	21.2	13.1	18	14.5
Control variables
Population density	251.9	19.93	251.7	19.9	252.3	20.4
Irrigation	19.9	0.40
Altitude (m)	1,238.8	139.3	1,217.3	146.3	1,332.8	110.2
Number of observations	280			224		56

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