Scope of the volume / Wilfred J. Ethier, Elhanan Helpman and J. Peter Neary -- Ronald Jones and the theory of international trade / Wilfred J. Ethier -- The hub effect : or, threeness in interregional trade / Paul Krugman -- International trade and factor mobility with an endogenous land frontier : some general equilibrium implications of Christopher Columbus / Ronald Findlay -- Directions of lumpy country trade / Alan V. Deardorff -- Job market preferences and international trade / Roy J. Ruffin -- Production indivisibilities in a short-run trade model / Wolfgang Mayer and Jun Li -- Firms, entry and hysteresis in the Heckscher-Ohlin-Samuelson model of production and trade / Michihiro Ohyama -- Welfare effects of tariffs and investment taxes / J. Peter Neary -- The case of the vanishing revenues : auction quotas with oligopoly / Kala Krishna. Prices of goods and factors in a dynamic stochastic economy / Avinash Dixit -- Capital market imperfections and the infant industry argument for protection / Eric W. Bond -- Endogenous real business cycles and international specialization / Kazuo Nishimura and Makoto Yano -- Impact of government on growth and trade / Anne O. Krueger and David W.H. Orsmond -- Long-run production frontiers for the Jones specific-factors model with optimal capital accumulation / James R. Markusen and Richard Manning -- Hysteresis in the trade pattern / Gene M. Grossman and Elhanan Helpman.