Munich Personal RePEc Archive
Diaspora remittances and signaling wealth game
Jellal, Mohamed
Al Makrรฎzi Institut Dโรฉconomie, Rabat , Morocco
16 July 2014
Online at https://mpra.ub.uni-muenchen.de/57356/
MPRA Paper No. 57356, posted 16 Jul 2014 23:42 UTC
๐ต = ๐ ๐ค โ ๐๐ + ๐ฝ๐(๐ฆ +๐ ) ๐
๐ ๐ฝ
Max0โค๐ โค๐ค ๐ต(๐ ) =๐ ๐ค โ ๐๐ +๐ฝ๐(๐ฆ + ๐ )
๐ตโฒ ๐ = โ๐โฒ(๐ค โ ๐๐ ) +๐ฝ๐โฒ(๐ฆ +๐ ) = 0
๐ฝ0 = ๐โฒ(๐ค)
๐โฒ(๐ฆ)
๐ = 0 โ๐ฝ < ๐ฝ0 ๐ > 0 โ๐ฝ โฅ ๐ฝ0
๐ตโฒ ๐ = โ๐โฒ(๐ค โ ๐๐ ) +๐ฝ๐โฒ(๐ฆ +๐ ) = 0
๐ตโฒ ๐ = 0 = โ๐โฒ(๐ค) + ๐ฝ๐โฒ(๐ฆ) > 0 ๐ฝ > ๐ฝ0 = ๐โฒ(๐ค)
๐โฒ(๐ฆ)
๐ =
0 โ ๐ฝ < ๐ฝ0 = ๐โฒ(๐ค) ๐โฒ(๐ฆ)
๐ = ๐ ๐ค,๐,๐ฝ,๐ฆ โ๐ฝ > ๐ฝ0 = ๐โฒ(๐ค) ๐โฒ(๐ฆ)
๐๐
๐๐ค > 0 ๐๐
๐๐ < 0 ๐๐
๐๐ฝ > 0 ๐๐
๐๐ฆ < 0
๐ตโฒ ๐ = โ๐โฒ(๐ค โ ๐๐ ) +๐ฝ๐โฒ(๐ฆ +๐ ) = 0 ๐ธ ๐ ,๐ค,๐,๐ฝ,๐ฆ = โ๐โฒ(๐ค โ ๐๐ ) +๐ฝ๐โฒ(๐ฆ +๐ ) = 0
๐๐ธ
๐๐ < 0
๐๐ ๐๐ค
๐๐ธ
๐๐ค = โ๐โฒโฒ > 0 ๐๐
๐๐
๐๐ธ
๐๐ = ๐ ๐โฒโฒ < 0
๐๐ ๐๐ฝ
๐๐ธ
๐๐ฝ = ๐โฒ . > 0
๐๐ ๐๐ฆ
๐๐ธ
๐๐ฆ = ๐ฝ๐" . < 0
๐๐ ๐๐ค > 0
๐๐ ๐๐ < 0
๐๐
๐๐ฝ > 0 ๐๐
๐๐ฆ < 0
๐ฆ
๐(๐ฝ) = ๐ฆ โ๐ฝ < ๐ฝ0 ๐ฆ +๐ ๐ฝ โ๐ฝ โฅ ๐ฝ0
๐(๐ฝ)
๐ฝ0 ๐ฝ
๐
๐(๐,๐) = ๐ฟ๐๐ ๐ ๐ฝ โ ๐ +๐พ๐ฟ๐๐ ๐ +๐ ๐ฝ
๐ = ๐ ๐ฝ โ ๐
๐ ๐ฝ
๐ ๐ฝ = ๐(๐ฝ)
๐
๐ ๐ฝ = ๐(๐ ๐ฝ ) ๐
๐(๐ ๐ฝ )
Max0โค๐โค๐ ๐ =๐ฟ๐๐ ๐ ๐ฝ โ ๐ +๐พ๐ฟ๐๐ ๐ +๐(๐)
๐
โ
1
๐ ๐ฝ โ๐ +๐พ
๐ +๐โฒ(๐)
๐ = 0 ๐ ๐ = ๐(๐ฝ)
๐โฒ ๐ ๐ฝ = ๐ ๐ ๐ ๐ฝ โ๐ ๐ฝ 1 โ๐ ๐ฝ ๐พ
๐ = ๐ฅ๐ ๐ฅ
๐ ๐ ๐ฝ = ๐ ๐ ๐ฅ ๐ฝ = ๐(๐ฝ)
๐โฒ ๐ฅ ๐ฝ = ๐ 1โ๐ฅ ๐ฝ 1 โ๐ฅ ๐ฝ ๐พ
๐ ๐ฅ ๐ฝ = ๐ 1โ๐ฅ ๐ฝ 1 โ๐ฅ ๐ฝ ๐พ ๐๐ฅ ๐ฝ +๐ ๐
๐ ๐ฝ = ๐ โ ๐log 1 โ ๐ฅ ๐ฝ โ ๐๐พlogโก(๐ฅ ๐ฝ )
๐ ๐ ๐ฝ = ๐ ๐ ๐ฅ ๐ฝ = ๐(๐ฝ) ๐ฅ0 = ๐ฃโ1 ๐0 = ๐พ
1+๐พ
๐ ๐ฝ = ๐ โ ๐log 1 โ ๐ฅ ๐ฝ โ ๐๐พlogโก(๐ฅ ๐ฝ )
๐(๐ฝ) = ๐ฆ โ๐ฝ < ๐ฝ0 ๐ฆ +๐ ๐ฝ โ๐ฝ โฅ ๐ฝ0