This paper considers liberalization of trade in both inter-temporal intermediation services and goods in a joint spatial-inter-temporal trade model. Joint multi-commodity spatial intertemporal models are not (to our knowledge) used in the trade literature as general comparative statics results...

We combine a model of combined inter-spatial and inter-temporal trade between countries recently used by Huang, Whalley and Zhang (2004) to analyze the merits of trade liberalization in services when goods trade is restricted with a model of foreign exchange rationing due to Clarete and Whalley...

"The NBER Bulletin on Aging and Health provides summaries of publications like this. You can sign up to receive the NBER Bulletin on Aging and Health by email. Technological progress is typically a result of trial-and-error research by competing firms. While some research paths lead to the...

Technological progress is typically a result of trial-and-error research by competing firms. While some research paths lead to the innovation sought, others result in dead ends. Because firms benefit from their competitors working in the wrong direction, they do not reveal their dead-end...