We estimate the interaction between fixed and mobile usage both for voice and data services using consumer level data from April 2013 to March 2014 in a European country. We find a signi cant proportion of fixed voice consumption could be substituted by mobile voice, and vice versa. However, a...

Prior studies have shown that while ISPs are well positioned to provide residential and SME users critical protection from cybercrime, their incentives to do so are often insufficient. The presence of competition in providing broadband service is a factor we might expect to impact such...

The adoption of broadband technology is a major policy issue for all countries. The objective of this paper is to identify factors contributing to mobile broadband (3G+4G mobile phones) adoption by focusing on smartphones. Broadband can broadly be divided into fixed (DSL, cable modem, FTTH) and...

Natural advantages determine where agglomerations emerge. Also, efficiency and economies of scale determine how many agglomerations subsist and how they interact, forming complex urban hierarquies. Moreover, physical characteristics influence the way humans divide land into irregular parcels we...

This paper analyzes the persistence of the shock caused by the American Civil War on the relative city size distribution of the United States. Our fi ndings suggest that the effects of this shock were permanent, which sharply contrasts with previous results regarding World War II for Japanese...