Ruiz-Castillo, J.; Ley, E.; Izquierdo, M. - In: Applied Economics 34 (2002) 18, pp. 2267-2276
The CPI compares the cost of acquiring a reference quantity vector at current and base prices. Such reference vector is the vector of mean quantities actually bought by a reference population, whose consumption patterns are investigated during a period τ prior to the index base period 0. This...