The effect of high-yielding variety on rice yield, farm income and household nutrition: evidence from rural Bangladesh

Table 3 Investigation of time-varying attributes of variables

Variable	Comparison group			Treatment group			Difference in Difference
Variable	2012	2015	Difference	2012	2015	Difference	Difference in Difference
Per hectare machinery cost (BDT)	2040	5888	3848	1919	6521	4602	754***
Per hectare pesticide cost (BDT)	302	813	511	318	1489	1171	660***
Per hectare fertilizer cost (BDT)	1502	3093	1591	2130	6278	4148	2556***
Per hectare compost cost (BDT)	126	3	− 123	142	48	− 94	28
Other income (BDT)	6260	4354	− 1906	3796	1937	− 1859	46
Per hectare total labour hour	324	612	288	299	856	557	269***
Irrigation	0.176	0.078	− 0.098	0.281	0.33	0.049	0.147***
Extension service	0.104	0.145	0.041	0.150	0.082	− 0.068	− 0.109***
Having income from livestock	0.904	0.933	0.029	0.921	0.918	− 0.03	− 0.032
Having income from fisheries	0.100	0.104	0.004	0.94	0.101	0.007	0.003

*Significant at the 10% level,**significant at the 5% level, ***significant at the 1% level

ISSN: 2048-7010