The extract from Sen's book, Development as Freedom, touches on many of the ideas discussed in the lecture. One additional ‘failure' of profit maximising markets mentioned by Sen is their inability to supply ‘public goods', goods or services that are highly valued insociety but will not be supplied by private firms.Task for students. Once you have read the extract by Sen, attempt the review and discussion questions 1-3 and 5 (ignore 4) on p.165, and be prepared to discuss your answers with your colleaguesin your tutorial.