WorldFish is an international, nonprofit research and innovation institution that creates, advances and translates aquatic food systems science into scalable solutions for healthy people and planet. Our research data, evidence and insights shape practices, policies and investment decisions to end hunger and advance sustainable development in low- and middle-income countries. Our publications database contains WorldFish publications and references to WorldFish research published in various journals and periodicals.

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People in the fisheries sector in developing countries are among those at highest risk to HIV and AIDS. Global data suggest that fisherfolk, including fishers, their families, fish processors and traders, are among high risk groups with infection rates that are five to ten times higher than in agricultural communities in the same areas.

Bangladesh has made significant progress in health indicators in recent years in spite of her low level of income. This is mainly due to the commitment of the state supported by donors in providing preventive care with respect to child health and family planning. However, there are serious problems related to both access and quality of curative care that hurt the poor most. Infrastructures for service delivery exist at local level in rural areas but they function inefficiently.

This paper introduces two spatial systems of demand equation models that are variants of the Linear Approximate to Almost Ideal Demand System (LA/AIDS) with habit formation.