Essays on macroeconomics and international trade

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Economics, June 2011."June 2011." Cataloged from PDF version of thesis.Includes bibliographical references.This thesis focuses on the study of different aspects of income inequality across and within countries. In the first chapter, I study how the optimal provision of human capital is distorted in the presence of borrowing constraints and private information on talent and wealth. It shows that elitist, non-merit based, access to higher education can be constrained optimal in poor and unequal countries. The second chapter documents how the IT revolution has changed the patterns of North-South trade and analyzes its effects on wage inequality. It provides theoretical and empirical results on wage polarization and a changes in the pattern of specialization. Finally, the third chapter provides a framework for estimating technological diffusion across countries. The framework is applied to study the diffusion of major technologies across the world since the Industrial Revolution. It is shown that differences in technology diffusion in the last two hundred years can account for two thirds of current income per capita differences.by Martí Mestieri.Ph.D

Mergers along the Global Supply Chain: Information Techonologies and Routine Tasks

This paper empirically analyses how the adoption of Information Technologies (IT) has changed the organization of global supply chains. We focus on international mergers, which are a growing and important component of foreign direct investment. We use data on North&-South mergers and acquisitions (M&As). We show that the effect of IT adoptionon the number of vertical M&As is decreasing with the routine intensity of the industry. Our interpretation is that the IT revolution enabled new monitoring mechanisms. This allowed Northern headquarters to better monitor suppliers, especially those in less routine-intensive industries &-which were harder to monitor before.Basco acknowledges financial support from the Spanish Ministry of Science and Innovation, grant MDM 2014-0431. Mestieri acknowledges financialsupport from the Agence Nationale de la Recherche

An Intensive Exploration of Technology Diffusion

We present a tractable model for the analysis of the relationship between economic growth and the intensive and extensive margins of technology adoption. At the aggregate level, our model is isomorphic to a neoclassical growth model. The microeconomic underpinnings of growth come from technology adoption of firms, both at the extensive and the intensive margin. We use a data set of 15 technologies and 166 countries to estimate the intensive and extensive margin of adoption using the structural equations derived from our model. We find that the variability across countries in the intensive margin is higher than in the extensive margin. The cross country variation in intensive margin of adoption accounts for around 40% of the variation in income per capita.

Aggregation and Closed-Form Results for Nonhomothetic CES Preferences

We provide four novel results for nonhomothetic Constant Elasticity of Substitution preferences (Hanoch, 1975). First, we derive a closed-form representation of the expenditure function of nonhomothetic CES under relatively flexible distributional assumptions of demand and price distribution parameters. Second, we characterize aggregate demand from heterogeneous households in closed-form, assuming that household total expenditures follow an empirically plausible distribution. Third, we leverage these results to study the Euler equation arising from standard intertemporal consumption-saving problems featuring within-period nonhomothetic CES preferences. Finally, we show that nonhomothetic CES expenditure shares arise as the solution of a discrete-choice logit problem

The Intensive Margin of Technology Adoption

Working papers are in draft form. This working paper is distributed for purposes of comment and discussion only. It may not be reproduced without permission of the copyright holder. Copies of working papers are available from the author

Human capital acquisition and occupational choice: Implications for economic development

© 2017 Elsevier Inc. Using household-level data from Mexico we document patterns among schooling, entrepreneurial decisions and household characteristics such as assets, talent of household members and age of the household head. Motivated by our findings, we develop a heterogeneous-agent, incomplete-markets, overlapping-generations dynasty model. Households jointly decide over their life cycle on (i) kids' human capital investments (schooling) and (ii) parents' entry, exit and investment into alternative entrepreneurial modes (subsistence and modern). With financial constraints all of these are co-determined. A calibrated version of our model can account for the broad correlation patterns uncovered in the data within and across generations, e.g., a non-monotonic relationship between educational choices and assets across occupations, growth in profits and employment for modern firms only, and dynastic persistence across generations in education and wealth. Endogenous human capital acquisition is a key driver of inequality and intergenerational persistence. Eliminating this channel would decrease the top 10% income share by 47%. Eliminating within-period borrowing constraints would increase average household expenditure by 7.1% and benefit the middle class, reducing top and bottom expenditure shares. It would also reduce by 28% the correlation between household assets and kids' schooling levels