"Past research into the determinants of international trade highlighted the importance of the basic spatial gravity model augmented by additional variables representing sources of friction. Studies modeled many sources of friction using various proxies, including indices based on expert judgment...

Market-dominating buyers in research and development (R&D)-intensive industries who deal with only a few suppliers must balance their short-term goal of minimizing cost with their long-term interest in maintaining financially healthy relationships with a limited number of qualified suppliers. In...

Past research into the determinants of international trade highlighted the importance of the basic spatial gravity model augmented by additional variables representing sources of friction. Studies modeled many sources of friction using various proxies, including indices based on expert judgment...