""The industry known as "general aviation"-encompassing all flying outside of the military and commercial airlines-dates from the early days of powered flight. As technology advanced, making possible smaller aircraft that could be owned and operated by civilians, manufacturers emerged to a serve...

Empirical laws are rare in economics. This book describes efforts to anchor economic knowledge to invariant empirical laws. It links 17th and 18th century Galilean monetary economists to econophysics, a field that emerged in the mid-1990s. This virtual journey from past to present is charted by...