Knowledge spillovers, location of industry, and endogenous growth

A Grossman-Helpman-Romer-type endogenous-growth model is developed in this study. This model has two countries in which there are knowledge spillovers that are partially local. Owing to these spillovers, innovation cost in a particular country decreases as the number of firms locating in both that country and the other country increases. If international knowledge spillovers are symmetric, innovation cost is lower in the country that has the larger market. However, if a small-market country can absorb the international knowledge spillovers better than a large-market country, the innovation cost may be lower in the small-market country. When the innovation cost is lower in the country that has a large market, the growth rate increases with agglomeration, which is generated by a reduction in the transportation costs. However, when the innovation cost is lower in the country that has a small market, the growth rate decreases with the reduction in the transportation costs.