[...]We address several questions in this paper. First,how could macro markets be useful to the average person?Second, how large are the potential benefits from diversificationif these markets were to be introduced andused optimally? Third, can existing financial marketsachieve a similar degree...

This paper uses a stochastic cost frontier model to investigate the efficiency of Britain’s private railways during the period 1893-1912. We find that there was substantial inefficiency in the industry with no sign of reduction over time. Our main conclusion is that principal agent problems...