Impact of the adoption of BMPs on social welfare: A case study of commercial floating feeds for pond culture of tilapia in Ghana

Figures & data

Table 1. Triangular distributions of key variables used in the Monte Carlo simulation to estimate NPV of adopting commercial floating fish feed in Ghana

Variable	Minimum	Most likely	Maximum
Recurrent costs ($)	40,000	55,000	70,000
Increase in production costs (%)	150	350	500
2013 Nile tilapia pond production (metric tons)	1,000	1,500	2,000
Peak adoption rate (%)	60	70	80
Yield change (%)	50	100	150
Discount rate	2.5	5	10

Figure 1. Summary of results of Monte Carlo simulation to determine NPV in US$ for adopting commercial floating fish feed in Ghana, showing a 90% confidence interval

Figure 2. NPVs at different percentiles for adopting commercial floating fish feed in Ghana

Figure 3. Relative impacts of key variables on the mean NPV for adopting commercial floating fish feed in Ghana across the range of key variables