TY - CHAP
T1 - Geographical spread of interfirm transaction networks and the great east Japan earthquake
AU - Saito, Yukiko Umeno
N1 - Publisher Copyright:
© Springer Japan 2015.
PY - 2015
Y1 - 2015
N2 - This chapter examines how the impact of the Great East Japan Earthquake spread geographically to unaffected areas through interfirm transaction networks. Previous studies on transaction networks revealed small-world structure and geographical proximity, which have conflicting implications for the geographical impact of the earthquake. Using interfirm transaction data from approximately 800,000 firms, it is examined how firms in physically unaffected areas are linked with those in the affected areas. It is found that only 3 % of firms in unaffected areas have direct transaction links with those in the affected areas. On the other hand, the share increases to 40–60 % if indirectly linked transaction partners (i.e. partners of partners) are taken into account. Further, it is shown that it is a small number hub firms with interfirm links spanning larger distances that are responsible for linking more local networks in different regions and hence for geographically spreading the economic impact of the earthquake.
AB - This chapter examines how the impact of the Great East Japan Earthquake spread geographically to unaffected areas through interfirm transaction networks. Previous studies on transaction networks revealed small-world structure and geographical proximity, which have conflicting implications for the geographical impact of the earthquake. Using interfirm transaction data from approximately 800,000 firms, it is examined how firms in physically unaffected areas are linked with those in the affected areas. It is found that only 3 % of firms in unaffected areas have direct transaction links with those in the affected areas. On the other hand, the share increases to 40–60 % if indirectly linked transaction partners (i.e. partners of partners) are taken into account. Further, it is shown that it is a small number hub firms with interfirm links spanning larger distances that are responsible for linking more local networks in different regions and hence for geographically spreading the economic impact of the earthquake.
KW - Earthquake
KW - Geographical proximity
KW - Interfirm networks
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U2 - 10.1007/978-4-431-55390-8_8
DO - 10.1007/978-4-431-55390-8_8
M3 - Chapter
AN - SCOPUS:85009817090
T3 - Advances in Japanese Business and Economics
SP - 157
EP - 173
BT - Advances in Japanese Business and Economics
PB - Springer
ER -