This paper focuses on network sharing on mobile networks and examines the impact on profitability and competition … and in the longer run move focus from infrastructure based to service based competition. Although operators have been able … business. Despite an extensive usage of network sharing - where competitors are collaborating - competition on the retail …

that are more effective at preventing outsider's entry and at mitigating price competition lead to less patenting. We test … restrict entry and price competition. We show that guilds which originated from medieval religious confraternities were more … likely to regulate entry and competition, and that the effect on patenting is robust to instrumenting guild statutes with …

possible autocorrelation and endogeneity. The results show that in the northern part of Italy, where most immigrants are … effect prevails, while there is a negative effect only in the manufacturing sector in Northern Italy for 1996. This effect …

possible autocorrelation and endogeneity. The results show that in the northern part of Italy, where most immigrants are … effect prevails, while there is a negative effect only in the manufacturing sector in Northern Italy for 1996. This effect …