Accounting for ARPU: New evidence from international panel data

Average revenue per user (ARPU) is commonly used by regulators and industry observers to compare the performance of mobile telephony markets. Under the new EU electronic communications regulatory framework, some national regulatory authorities (NRAs) have linked higher ARPU with 'significant market power'. This paper empirically examines the determinants of ARPU in a systematic way, taking account of service quality, market environment, regulation and quantity of service. The robust results suggest that concentration may not be a reliable indicator of competition in mobile markets; there are economies of density in mobile markets; and higher GDP per capita increases ARPU.