Cover, Contents, Acknowledgments, and Introduction, Humanizing the Exploding Metropolis

Cover, Contents, Acknowledgments, and Introduction, Humanizing the Exploding Metropolis for Rutherford H. Platt\u27s book, The Humane Metropolis: People and Nature in the 21st-Century Cit

Reexamining Race and Racial Identity in the United States

Symposium: Our Private Obsession, Our Public Sin: Forewor

Reexamining Race and Racial Identity in the United States

Symposium: Our Private Obsession, Our Public Sin: Forewor

Ileocaecal valve

PART I. Literature dealing with Valvula ColiPART II. Observations on Living Subject • Ileocaecal Valve in the Dog • Description of Thirty-two Human Specimens hardened in formalin • Summary • Bibliography • AddendumPART III. DESCRIPTION OF PHOTOGRAPHIC PLATES: A. Plates No. 1 - 32. Photographic plates corresponding to descriptions of 32 human specimens, supra, p.p. 48 - 73. • B. Photographic Plate representing Microscopical Section across base of Valve Mammilla of specimen No. 2 (Plate A. No. 2) • C. Photographic Plate representing Microscopical Vertical Section of Valve Mammilla of Specimen No. 2 (Plate A. No. 2) • D. Photographic Plate representing Microscopical Vertical Section of Specimen No. 11. (Plate A. No. 11) • E. Photographic Plates of Ileocaecal Valve in Dog natural size and enlarged

Structural Estimation and Solution of International Trade Models with Heterogeneous Firms

We present an empirical implementation of a general-equilibrium model of international trade with heterogeneous manufacturing firms. The theory underlying our model is consistent with Melitz (2003). A nonlinear structural estimation procedure identifies a set of core parameters and unobserved firm-level trade frictions that best fit the geographic pattern of trade. Once the parameters are identified, we utilize a decomposition technique for computing general-equilibrium counterfactuals. We first assess the economic effects of reductions in measured tariffs. Taking the simple-average welfare change across regions the Melitz structure indicates welfare gains from liberalization that are nearly four times larger than in a standard trade policy simulation. Furthermore, when we compare the economic impact of tariff reductions with reductions in estimated fixed trade costs we find that policy measures affecting the fixed costs are of greater importance than tariff barriers

Structural Estimation and Solution of International Trade Models with Heterogeneous Firms

We present an empirical implementation of a general-equilibrium model of international trade with heterogeneous manufacturing firms. The theory underlying our model is consistent with Melitz (2003). A nonlinear structural estimation procedure identifies a set of core parameters and unobserved firm-level trade frictions that best fit the geographic pattern of trade. Once the parameters are identified, we utilize a decomposition technique for computing general-equilibrium counterfactuals. We illustrate this technique using trade and protection data from the Global Trade Analysis Project (GTAP). We first assess the economic effects of reductions in measured tariffs. Taking the simple-average welfare change across regions the Melitz structure indicates welfare gains from liberalization that are nearly four times larger than in a standard policy simulation model. Furthermore, when we compare the economic impact of tariffs with reductions in estimated fixed trade costs we find that policy measures affecting the fixed costs of firmentry are of greater importance than conventional tariff barriers.