This paper analyzed the determinants of India’s virtual water trade in crops and crop products for the period 2001 to 2020. The study used product data at the 6-digit level of commodity classification, covering 206 commodities traded across 218 partner countries. Analysis shows that India has a favorable virtual water trade balance and terms of trade with its partner countries. Among the commodities traded, rice accounted for over one-fourth of the total volume of virtual water exported, and sunflower/safflower oil constitute over one-third of the total volume of virtual water imported. No consistent pattern was observed with regard to the level of endowment of water resources of export destination countries. Gravity model results revealed, as expected, that partner countries’ GDP and population size had a positive effect on virtual water exports, while distance had a negative effect. The coefficient of membership in a free trade agreement (FTA) was negative and statistically significant, implying that FTA member countries are sensitive to the trading of water-intensive agricultural products. The effect of amount of arable land on virtual water exports was negative; this implies that larger virtual water exports correlate with land constraints in a destination country that impede domestic agricultural production. The water endowment variables did not show any significant relationship with virtual water export flows, which confirms the finding in the literature that the water stress of a partner countries does not affect the direction of virtual water flows.

Virtual Water explores the role of "virtual water" – the water embedded in a product – in ongoing conversations of agriculture, trade and sustainability in an increasingly inter-connected world. A pervasive theme throughout the book is the general lack of knowledge of the use of water in producing and consuming food. The chapters, arising from a workshop supported by the OECD Co-operative Research Programme: Biological Resources Management for Sustainable Agricultural Systems, on virtual water, agriculture and trade at the University of Nebraska-Lincoln, consider questions of gaps in knowledge, why sustainability matters and the policy implications of virtual water trade. Contributors show how water is a lens through which to examine an array of vital issues facing humanity and the planet: human and animal health; food production; environmental management; resource consumption; climate change adaptation and mitigation; economic development, trade and competitiveness; and ethics and consumer trust. Virtual Water will be of great interest to scholars of water, resource management and consumption, the environmental aspects of development, agriculture and food production. It originally published as a special issue of Water International.

This book presents recent findings from the South Asian region (SA), broadly including groundwater studies on (a) quantity, (b) exploration, (c) quality and pollution, (d) economics, management and policies, (e) groundwater and society, and (f) sustainable sources. It offers a compilation of compelling, authentic insights into groundwater scenarios throughout the water-stressed South Asia region. Comprising Afghanistan, Bangladesh, Bhutan, India, Myanmar, Nepal, Pakistan, and Sri Lanka, it is the most densely populated region in the world: It occupies approximately 4% of the global land area but supports more than 25% of the global population. The SA region now faces an acute shortage of fresh water due to a rapid rise in water demand and changes in societal water-use patterns. Combining essential advances and perspectives, this book offers a valuable resource for all scientists, planners and policymakers who are interested in understanding and developing the SA and other related areas.

1.1 General Framework In most arid and semi-arid countries, water resource management is an issue that is both important and controversial. Most water resources experts now acknowledge that water conflicts are not caused by physical scarcity but are mainly due to poor water management (Rosegrant et al. 2002; Benoit and Comeau 2005; Comprehensive Assessment of Water Management in Agriculture 2007; Garrido and Dinar 2010, among others). The scientific and technological advances of the past 50 years have led to new ways to solve many water-related conflicts, often with tools that seemed unthinkable a few decades ago (Llamas 2005; Lopez-Gunn and Llamas 2008). This study deals with the estimation and analysis of Spain’s water footprint, both from a hydrological and economic perspective. Its ultimate objective is to report on the allocative efficiency of water and economic resources. This analysis can provide a transparent and multidisciplinary framework for informing and optimising water policy decisions, contributing at the same time to the implementation of the EU Water Framework Directive (WFD) (2000/60/EC). It also responds to the current mandate of the Spanish Ministry of Environment and Rural and Marine Affairs, which recently issued instructions for drafting river basin management plans in compliance with the EU Water Framework Directive, with a deadline of end of year 2009 and then every 6 years (BOE 2008).

Contributed articles.