#developing countries
Phaphon Plumwongrot; Piriya Pholphirul* Graduate School of Development Economics, National Institute of Development Administration (NIDA)
Buain, O.; Piriya Pholphirul* Graduate School of Development Economics, National Institute of Development Administration (NIDA)
Tumsarp, P.; Piriya Pholphirul* Graduate School of Development Economics, National Institute of Development Administration (NIDA)
Peerayuth Charoensukmongkol, Nichanal Lamsam
