The Robinson Crusoe economy is a good example to explain the concept of comparative advantage and inter-generational consumption. In a Crusoe economy, where the only occupation is fishing, the current generation controls consumption and conserves for the future. The system works until a generation starts apportioning a larger share of fish.
Some Indian states could be accused of such short-sightedness as they return to an old pension scheme for government employees. The old scheme puts the burden of employee pension on the state; the new system sets contributions from the employer and employee. Returns in the new system are market
