The paper aims to estimate the Fisher index during the period 1994-1997 to explore how well the Laspeyres index can serve as the cost of living index. It is shown that the Laspeyres results in an upward substitution bias, and the bias appears to be higher for the ultra-poor and the poor. It...

By all accounts, poverty in Chile has declined dramatically over the last 20 years, with the nacional headcount ratio declining from nearly 40% in 1987 to below 14% in 2006. Due to data limitations, most research on poverty in Chile has focused on national and regional estimates, yet recent...