Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
In deregulated transport markets, a firm's ownership status and management system represent an important issue. Property right theory suggests that productivity and performance are higher in the private than in the public sector. In Switzerland, providers of bus transportation are traditionally corporations, though a large part of their equity shares are still held by the public sector (federal government, cantons, municipalities). This paper examines the potential impact of ownership on the cost of bus service provision for a sample of private, public and mixed bus companies in Switzerland. The estimation of a translog cost model has been considered for 34 bus transit companies observed over 5 years (1991-1995). The results only partially confirm that if the private sector holds shares in the company's capital, efficiency is enhanced. In addition, measures of economies of scale and density are derived and discussed within the actual public transport policy.