The results of an Almost Ideal Demand System (AIDS) for dairy products, in the period 1963-2003, in Portugal are presented. Price elasticities are calculated for the whole sample and at the average to identify possible changes in consumer behaviour. A comparison with previous ad-hoc and AIDS...

Concern over the high rate of contagion of COVID-19 has prompted world authorities to use the strategy of isolation and social confinement as the main non-pharmacological weapon against the disease that has rapidly killed millions of people worldwide. However, there is evidence that the...