This paper presents and tests a new model of multinational firms to explain a rich array of multinational behaviour. In contrast to most approaches, here the multinational faces costs to transferring its knowhow that are increasing in technological complexity. Costly technology transfer gives...

We present an international trade model with multiproduct firms. Firms are heterogeneously endowed with two types of capabilities that jointly determine the trade-off within firms between managing a large portfolio of products and producing at low marginal cost. The model can explain many of the...