“…As supply‐side constraints facing many developing countries are correlated, the error terms and may not be independent of each other (particularly for recipients in the same geographic region, k). Thus, following Baltagi, Song, and Jung (), we define a recipient‐specific random term ζ i and split the error terms into two components (particularly those in the same geographic region that are related) to address the problem: Substituting Equation into our baseline specification (Equation 3) yields what is called a multilevel mixed‐effects random intercept and coefficient model. Equation illustrates: where α 0 , α i , α j , and ϕ t are as previously indicated, and the v...…”