%0 Journal Article %T From Entry Barriers to Mobility Barriers: Conjectural Decisions and Contrived Deterrence to New Competition %A Caves, R., E. %A Porter, M., E. %J The Quarterly Journal of Economics %V 91 %N 2 %@ 0033-5533 %D 1977-05-01 %I Oxford University Press %~ DeepDyve