Which are the drivers of fixed to mobile telephone access substitution? An empirical study of the Spanish residential market

Using household panel data for the period 2004 to 2009, the percentage of households that engage in fixed to mobile access substitution in Spain is quantified. This turns out to be small: on average 0.35% per quarter (range: 0.02% to 0.79%). Then the drivers of households to substitute are analysed, finding out that the availability of Internet and mobile services previous to the substitution decision and the socio-demographic characteristics of households, such as age, play a more prominent and significant role in explaining fixed to mobile access substitution when compared to other aspects such as the degree and types of expenditure on fixed services.