J X Wang

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E. Scomparin

Istituto Nazionale di Fisica Nucleare, Sezione di Torino

B. Z. Kopeliovich

Federico Santa María Technical University

Papadimitriou

University of Pittsburgh

G. Martı́nez

Florida Department of State

Gennaro Corcella

Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

F. Fleuret

Centre National de la Recherche Scientifique

C. Lourenço

European Organization for Nuclear Research

J. Huang

T. Ullrich

Brookhaven National Laboratory

E. G. Ferreiro

Universidade de Santiago de Compostela

Cooperative Institutions

A. Alikhanyan National Laboratory

European Organization for Nuclear Research

Centre National de la Recherche Scientifique

Institut National de Physique Nucléaire et de Physique des Particules

Université Paris-Saclay

University of Antwerp

École Polytechnique

Laboratoire Leprince-Ringuet

Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

Brookhaven National Laboratory

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Institutional Reform and Impacts: The Case Study in the Yellow River Basin

J X Wang Zhigang Xu J. Huang Scott Rozelle

The overall goal of our paper is to better understand water management reform in China's communities, especially focusing on the effect that it will have on the nation's water resources and the rural population. To pursue this goal, the paper has three objectives. First, we track the evolution of water management reform and seek to identify the incentive mechanisms that encourage water managers to more efficiently use water. Second, we identify the impact of water management reform on crop water use, the primary motivation of the policy. Finally, the paper explores how changes in China's water management reform affect agricultural production, farmer income and poverty. Based on a random sample of 57 villages, 231 farmers and 462 plots in four large irrigation districts in Ningxia and Henan provinces, both provinces in China's Yellow River Basin, our results show that two of the main forms of water management reform, Water User Associations and contracting, individual water contractors, have begun to systematically replace traditional forms of collective management. The impacts analysis demonstrates that it is not the nominal implementation the reform that matters, but rather it is the creation of new management institutions that offer manager strong incentive to save water. Specifically, when managers in reformed organizations face strong incentive, they save water and, importantly, given China's concerns about national food production and poverty allevation, the reductions in water do not lead to reductions in either production, income or higher incidences of poverty.

Water use

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Quarkonium production in high energyproton-proton and proton-nucleus collisions

Z. Conesa del Valle Gennaro Corcella F. Fleuret E. G. Ferreiro Kartvelishvili

We present a brief overview of the most relevant current issues related to quarkonium production in high energy proton-proton and proton-nucleus collisions along with some perspectives. After reviewing recent experimental and theoretical results on quarkonium production in pp and pA collisions, we discuss the emerging field of polarization studies. Afterwards, we report on issues related to heavy-quark production, both in pp and pA collisions, complemented by AA collisions. To put the work in broader perpectives, we emphasize the need for new observables to investigate the quarkonium production mechanisms and reiterate the qualities that make quarkonia a unique tool for many investigations in particle and nuclear physics.

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