1 the sensitivity of multiregional economic structure to improved interregional accessibility norihiko yamano kazumi hitomi and norihisa sakurai socio research center central institute electric power industry ohtemachi 6 chiyoda tokyo 100 8126 japan abstract our recently developed japanese multi regional econometric input output model is an extended io transactions by sectors are endogenously determined from conditions situation trade barriers in a society with decreasing population further investment transportation infrastructure has become pressing issue employing endogenized framework exogenous changes network can be taken into account numerical analysis provides impacts on economies as well disparities result shows that induces convergence per capita labor productivity expansion tremendous effects periphery regions at initial stage but positive fade time geographical advantage located part even stronger than base case later phase simulation keywords
