unbundling. The theory predicts that an airline’s fares should fall when it introduces a bag fee, but that the full trip price …

We estimate the effect of broadband infrastructure, which enables high-speed internet, on economic growth in the panel … diffusion model where pre-existing voice-telephony and cable-TV networks predict maximum broadband penetration. We find that a … 10 percentage-point increase in broadband penetration raises annual per-capita growth by 0.9-1.5 percentage points …

unique telecommunication data with geo-coded German individual-level data, we investigate how broadband Internet affects …-owned telecommunication provider in the 1990s that still hinders broadband Internet access for many households. We find no evidence that the …