Table 3.

Economic surplus of Bt maize adoption (annuities in thousands of USD).

	Scenario 1				Scenario 2
Year	ΔTS	ΔCS	ΔPS	π	ΔTS	ΔCS	ΔPS	π
2016	59,003	31,430	17,143	4,480	103,728	62,148	33,899	7,681
2017	74,506	39,706	21,658	5,645	111,547	66,840	36,458	8,248
2018	91,443	48,757	26,595	6,911	119,744	71,760	39,142	8,842
2019	108,891	58,091	31,686	8,210	128,307	76,901	41,946	9,460
2020	125,814	67,153	36,629	9,464	137,218	82,252	44,865	10,101
2021	141,293	75,449	41,154	10,605	146,456	87,800	47,891	10,764
2022	154,710	82,646	45,080	11,591	155,992	93,530	51,016	11,447
2023	165,808	88,603	48,329	12,403	165,796	99,421	54,230	12,146
2024	174,640	93,346	50,916	13,048	175,832	105,453	57,520	12,859
2025	181,453	97,006	52,913	13,545	186,059	111,602	60,874	13,583
NPV	848,482	503,206	274,476	70,800	1,076,410	645,287	351,975	79,148