Impact of Formal Financial Market Participation on Farm Size and Expenditure on Variable Farm Inputs: The Case of Maize Farmers in Ghana

Table 4

Indicators of matching quality before and after matching.

Matching; algorithm	Outcome; indicator	𝑅^2; unmatched	𝑅^2; matched	𝑃 value; unmatched	𝑃 value; matched	Mean absolute; bias unmatched	Mean absolute; bias matched	Absolute bias; reduction
Nearest; neighbour	Farm size	0.209	0.021	0.000	0.399	21.6	7.6	64.7
	Expenditure on variable inputs per hectare	0.209	0.020	0.000	0.308	8.2	12.1	47.8
Calliper	Farm size	0.209	0.017	0.000	0.555	21.6	5.8	73.0
	Expenditure on variable inputs per hectare	0.209	0.018	0.000	0.456	8.2	11.6	40.8
Kernel base; matching	Farm size	0.213	0.026	0.000	0.268	21.6	5.6	73.0
	Expenditure on variable inputs per hectare	0.209	0.020	0.000	0.308	8.2	12.1	47.5

Source: author’s calculations.