... 25–55.Selten, R. (1 978 ). The chain-store paradox. Theory and Decision 9, 1 27 159.Sen, A. K. (1 970 ). Collective Choice and Social Welfare. Edinburgh: Oliver and Boyd.Sen, A. K. (1 973 ). Behaviour and the ... example?BIBLIOGRAPHY 483Spence, A. M. (1 973 ). Job market signalling. Quarterly Journal of Eco-nomics 87, 366– 374 .Spence, A. M. (1 977 ). Entry, capacity, investment and oligopolistic pricing.Bell Journal ... should deodorant and perfume be subs idised?13.8. CONCLUSION: ECONOMIC PRESCRIPTIONS 4 67 = 1:025= 1:05= 1: 075 Meat, …sh, dairy products and fats 11.1 27. 8 63.2Fruits and vegetables...