Second, the cash-flow channel is particularly strong for homeowners with limited financial assets, who tend to have large mortgages, often with adjustable rates. Third, spending is substantially stimulated via the income channel. This channel is heavily skewed towards lower-income households, who also tend to benefit disproportionately from a stronger labour market. Fourth, the strongest asset price effect occurs through the increases in house prices.
One possible explanation, commonly mentioned in literature, is that the diffusion of innovation and new technology is associated with a rapid decrease in learning costs over time triggered by the increasing number of users. More widespread knowledge about how to exploit new technology would obviously speed up the rate of diffusion and foster non linear effects as regards the benefits associated with it.