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Field
Primary Outcomes (End Points)
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Before
We consider the following as the primary outcomes:
i) Intention to treat (TT) analyses:
1) Purchasing SPF-PL (1/0): We will define the purchase of SPF-PL as binary for each individual (1/0), in the stalking period after the distribution of the vouchers
2) Quantity of the SPF-PL purchased: We will use the total amount of purchased SPF-PL in the stalking period after the distribution of the vouchers.
3) Plan to purchase the disease-free PL in the next production cycle: We will define the binary outcome variable as 1 when the farmer plans to purchase the SPF-PL in the next production cycle.
4) Amount of harvested shrimp: defined in terms of the number of shrimps harvested
ii) Local Average Treatment Effect (LATE) analyses:
1) Experienced any mortality due to disease in the stalking period after the distribution of the voucher.
2) Percentage of overall mortality in the pond in the stalking period after the distribution of the voucher.
3) The approximate losses due to disease-related problems in BDT in the stalking period after the distribution of the voucher.
4) FIES (Food Insecurity Experience Scale) score
5) Amount of harvested shrimp: defined in terms of the number of shrimps harvested
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After
(1) Intention to treat (TT) analyses:
(i) Purchasing SPF-PL (1/0): We will define the purchase of SPF-PL as binary for each individual (1/0), in the stalking period after the distribution of the vouchers
(ii) Quantity of the SPF-PL purchased: We will use the total amount of purchased SPF-PL in the stalking period after the distribution of the vouchers.
(iii) Plan to purchase the disease-free PL in the next production cycle: We will define the binary outcome variable as 1 when the farmer plans to purchase the SPF-PL in the next production cycle.
(2) Local Average Treatment Effect (LATE) analyses:
(i) Mortality: We will define mortality as binary if an individual farmer experiences any mortality in the stalking period after the distribution of the voucher.
(ii) Percentage of mortality: We will define it as a percentage of overall mortality in the pond in the stalking period after the distribution of the voucher.
(iii) Monetary loss: We will measure the approximate losses in BDT in the stalking period after the distribution of the voucher.
(iv) Gross value of shrimp output produced: We will measure the gross value of the shrimp output in terms of BDT in the stalking period after the distribution of the voucher.
(v) Amount of harvested shrimp: We will define it in terms of the number and weight of shrimps harvested in the stalking period after the distribution of the voucher.
(vi) Food Insecurity Experience Scale (FIES) score: We will use the FIES score generated using the widely used Food Insecurity Experience Scale.
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