Transactions have always taken place. For hundreds of years that 'place'
was a market or, more recently, a shopping mall. But in the past two
decades these physical locations have increasingly been replaced by
their virtual counterparts - online platforms. Here, author Michael C.
Munger demonstrates how these platforms act as matchmakers or middlemen,
a role traders have adopted since the very first exchanges thousands of
years ago. The difference today is that the matchmakers often play no
direct part in buying or selling anything - they just help buyers and
sellers find each other. Their major contribution has been to reduce the
costs of organising and completing purchases, rentals or exchanges. The
Sharing Economy: Its Pitfalls and Promises contends that the key role of
online platforms is to create reductions in transaction costs and it
highlights the importance of three 'Ts' - triangulation, transfer and
trust - in bringing down those costs.