Central to this book is a discussion of the notion of freedom in Marx and Engel's work. The book argues that the libertarian foundations of political economy were present in Marx's and Engel's work and utilizes contemporary theories of freedom to reinterpret and analyse their original work.

Opportunity sets are defined by taking account of budgetary, institutional and legal constraints. Then a cardinal measure of freedom is proposed which is apt to interpersonal comparisons of opportunity sets. Individual choice freedom may expand when a new good is publicly provided free or at a...

In this paper I present a measure of freedom for opportunity sets which are bounded by both budget and time constraints. Then I show that, in a society in which income is distributed more unequally than leisure time, a government aiming at leaving freedom distribution unaltered should apply...

The quantity of an individual's freedom is thought to coincide with the width of her opportunity set, and this is defined by taking account of budgetary, institutional and legal constraints to choices. A simple cardinal measure of freedom is proposed on the ground of which some exercises in...