Colombia. We estimate three different specifications of demand systems, namely, the Linear Expenditure System (LES), the …Using household data from the 2006 Income and Expenditure survey, we provide a new estimation of demand systems for … Extended Linear Expenditure System (ELES) and the Almost Ideal Demand System (AIDS). We also calculate expenditure, income and …

Approximation/Almost Ideal Demand System) para examinar los gastos de los colombianos en la canasta básica, y estimar sus … respectivas elasticidades precio y gasto, a partir de datos de series de tiempo para Colombia en el período de 1968-2007. Las … Demand System (LA/AIDS) to examine Colombian's expenditure in daily needs and to estimate the respective expenditure and …