Professor Amartya Kumar Sen was awarded the Nobel Prize for economics in 1998 in recognition of his “several key contributions to the research on fundamental problems in welfare economics”, as noted in the Nobel citation. This paper examines three major areas of economics, which it calls...

Econometric analysis of household expenditure is an important area of economic inquiry because the estimated demand parameters are particularly useful in many behavioural aspects of demand forecasting and in welfare issues. This paper analyses expenditure patterns in Mew Zealand by estimating,...