  This study expands upon the foundation of 'Skill-Relevance-Self Selection'
model on labor immigration, introduced by our previous study (Lee, Lim, & Cho,
2022). In detail, we seek an empirical confirmation of the model by providing
evidence of the attained -- however, yet to be tested -- stylized fact: 'as the
discount of intranational skill-relevance by immigration is intensified, the
wage differential of international labor immigration is diminished'. Utilizing
the hypothesis and data meticulously formulated and selected in consideration
of Employment Permit System (EPS) and the typology of host nations, OLS linear
regression results reasonably support all hypotheses with statistical
significance, thereby inductively substantiating our constructed model. This
paper contributes to existing labor immigration economics literature in three
following aspects: (1) Acknowledge the previously overlooked factor of 'skill
relevance discount' in labor immigration as an independent parameter, separate
from the 'Moving cost' of Borjas model (1987; 1991); (2) Demonstrate the
down-to-earth economic implications of host nation typology, thereby
establishing a taxonomy in existence, rather than an ideal classification; (3)
Seek a complementary synthesis of two grand strands of research methodology --
that is, deductive mathematical modeling and inductive statistical testing.
