The paper develops a stand-alone and testable gravity model to explain international patterns of foreign direct investment (FDI). The core model is based on knowledge-based gravitational forces that are directly or indirectly linked to a country's economic mass (GDP). The micro-economic part of...

We analyze the spatial interaction among regions in North America and in Western Europe. We use a gravity model extended by a spatial correlation structures where data allows to evaluate the level of impact and the length of the spatial tail. This allows us to address to effects external to the...

The issues of zero trade observations and the validity of the log linear transformation of the gravity equation have generated a number of debates in the literature with differing claims about the most suitable estimation technique. To produce unbiased and consistent estimates for policy making,...

This study uses the gravity model to estimate the effects of food safety regulations implemented by the partner countries on agri-food exports of China. Annual bilateral trade data are compiled for major agrifood export items of China like apples, kidney beans, garlic, mandarins and orange, meat...