Collect the following data by conducting individual interviews with the sellers operating in the target area. The best way to identify a maximum number of sellers is to use the "snowball sampling" methodology – ask key informants, such as sellers, suppliers or authorities, whether they know of any potential sellers that may or may not sell the given products. If you know that there is a very large number of sellers in the target area, use a representative sample of these sellers.
RECOMMENDED SURVEY QUESTION (Q) AND POSSIBLE ANSWERS (A)
Q1: What are all the types of [specify the products] that you sell?
A1: It is recommended that you prepare a checklist listing all the products the seller is expected to sell (such as the most essential types of agricultural tools, seeds, etc.) and together with the seller identify which of them are sold.
To determine the indicator's value:
- calculate how many of the types of product included in the checklist each seller sells
- sum up the number of types of product sold by all the surveyed sellers
- divide the result by the number of surveyed sellers
For example:
- seller A sells 4 types of product, seller B sellers 7 types of product and seller C sells 1 type of product
- 4 + 7 + 1 = 12
- 12 divided by 3 sellers = average 4 types of product sold