Consumer expenditure is a good measure of standard of living of the people. An increase in total per capita consumer expenditure at constant prices becomes the good indicator of the improvement of standard of living. The book analyzes consumer behaviour, in the allocation of resources to various goods and services, in North East India with special reference to Mizoram. Engel's Law has been taken as underpinning theoretical assumption as declining share of food as consumer's expenditure rises. Various consumption items are classified into necessities and luxuries by estimating their respective expenditure elasticities. The book examines the consumption behaviour of the people in various income classes. In another context, it also examines rural-urban disparities in consumption behaviour. The book may be useful for research scholars, students of economics and management, and the policy makers.