Document Type : Research Paper
Authors
.
., .., & ., .. (2002). . Economics Research, 2(6), 13-48.
., .., & ., .. ".", Economics Research, 2, 6, 2002, 13-48.
. .., . .. (2002). '.', Economics Research, 2(6), pp. 13-48.
. . & . ., ".," Economics Research, 2 6 (2002): 13-48,
. .., . .. . Economics Research. 2002;2(6):13-48 (In Persian).
