The dilemma is that poor countries lack the means to connect all places to all inputs. They are faced with the choice of connecting a few places to most inputs and getting high productivity there, or putting some of the inputs in all places and getting very little productivity growth everywhere.
困境在于穷国缺少将所有地方和所有投入之间全部连起来的办法。它们必须选择一些地方，让它们与大部分投入品相连并获得搞生产率，或者选择将一些投入送往所有地方，让所有地方的生产率都低迷。这就是发展总是倾向于不平等的原因。