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Ethnicity and conflict

Ethnicity and Conflict: Theory and Facts. April 2012, with J. Esteban and D. Ray.

Science 336, 858 (2012).

Ethnicity and Conflict: An empirical Study, 2012. With Joan Esteban and Debraj Ray

American Economic Review 102, pp. 1302-42.

Online Appendix


Aggregation and persistence


Model selection, uncertainty and the PPP puzzle, 2015 with L. Gadea-

Oxford Economic Papers  67, pp. 614-633.

Heterogeneous dynamics, aggregation and the persistence of economic shocks. (2013)


International Economic Review 54, 1295–1307.

Aggregate Real Exchange Rate persistence through the lens of sectoral data, 2011. with L. Gadea

Journal of Monetary Economics 58, 290-304.

Online appendix

Aggregation is not the solution: the PPP puzzle strikes back, (2009), with L. Gadea,

Journal of Applied Econometrics 24, 875-894



Fractional Dickey-Fuller Test for unit roots (2002), with J. Dolado and J. Gonzalo.

Econometrica 70, 1963-2006

A New Minimum Distance Estimation of ARFIMA Processes (2007)

Econometrics Journal, 10, 1, 124-148

Wald Tests of I(1) against I(d) alternatives: some new properties and an extension to processes with trending components (2008), with J. Dolado and J. Gonzalo,

Studies in Nonlinear Dynamics and Econometrics, 12, nº 4, article 1.

An overview of new results on simple Wald Tests for Fractional Roots, (2009), with J. Dolado and J. Gonzalo

The methodology and practice of econometrics (eds. J. Castle and N. Shepard)

Testing for fractional integration versus short memory and structural breaks, 2012

The Oxford Bulletin of Economics and Statistics 74, pp. 278-305.


Persistence in economic and political data

Further evidence on the statistical properties of real GNP (2006)

The Oxford Bulletin of Economics and Statistics 68, 901-920

For further details, download from here the Working Paper version of this paper

The persistence of inflation in OECD countries (2005), with Lola Gadea,

International Journal of Central Banking nº 4, 51-104

Long Memory in Spanish Political Poll Data (2003), with J. Dolado and J. Gonzalo.

Journal of Applied Econometrics 18, 137-155.



Working Papers and Ongoing Work


Group Inequality and Civil Conflict, with John Huber .

This draft: November 2016.

Revision requested, Journal of Economic Growth

Groups in Conflict: Size matters, but not in the way you think, with Debraj Ray.

Last revised: October 2016. Submitted.

 Liberté, Egalité...Religiosité, with Joan Esteban and Gilat Levy

This version: February 2017

 Personal Liberties, Religiosity and Effort (2017), with Joan Esteban and Gilat Levy.

Last revised: January 2017

A Politico-Economic Model of Public Expenditure and Income Taxation (2013), with Joan Esteban


Within-group inequality and conflict: Theory and Evidence. In preparation.


The long-run impact of witch hunting in Europe, with Joachim Voth. In preparation.


The heterogeneous impact of reforms, with Lola Gadea. In preparation.


Weakly exogeneous Instruments. In preparation.


Climate change and state collapse: an analysis using data from 6 Millenia, with Ola Olsson. In preparation