The seat did in fact return a Tory MP, Piers Merchant in 1983 (as a result of vote splitting between Labour and the SDP), although it was won back for Labour in 1987 by Jim Cousins, who has held it ever since.
Likewise, the bubbles and crashes that have afflicted asset markets ever since Holland's tulipmania in the 17th century and right up to the subprime-mortgage bubble are also cousins of the prisoner's dilemma.