期刊名称：Discussion Paper / Département des Sciences Économiques de l'Université Catholique de Louvain
印刷版ISSN：1379-244X
出版年度：2010
卷号：1
出版社：Université catholique de Louvain
摘要：The benchmark of this paper is the Fujita and Thisse (2002) core-periphery
model, which adds a R&D sector with skilled labor to create new varieties for the
modern sector. The number of R&D firms increases not only with the number of
existing patents and knowledge spillovers but also with the number of skilled workers
who can migrate and choose the region offering the better lifetime salary. The main
objective of the present work is to analyse the long-term consequences of the choice of
the migration law in Fujita and Thisse (2002) and in other comparable models. After
describing throughoutly our benchmark, we introduce a different migration law `a la
Krugman (1991). Although the change in the migration law implies that individuals
do not foresee price changes and hence their choice is somehow less optimal, the
steady state outcome does not vary qualitatively: the unique steady state is a
symmetric distribution of labor across regions. Later we change the benchmark
model to avoid the so called monotonic convergence hypothesis, about which we
discuss at large in the paper. When we model the economy using Romer (1990) two
sector model applied to two regions allowing for skilled migration, then there exists a
solution path that converges to a steady state which exhibits a distribution of skilled
workers amongst regions which is no longer symmetric. In effect, the new steady
state depends on technology, fixed costs, knowledge spill-overs and transportation
costs.
