This paper shows that Hausman-McFadden and related tests for the multinomial logit model are not informative about failure of IIA, but only about specification error in the deterministic part of the utilities attached to choice alternatives. It is shown that the multinomial logit cannot be...

An emerging quantitative spatial economics literature models commuting interactions by a gravity equation that is mathematically equivalent to a multinomial logit model. This model is widely viewed as restrictive because of the independence of irrelevant alternatives (IIA) property that links...

This paper considers specification tests for the multinomial logit model if alternative-specificconstants are used to absorb the impact of omitted variables in the deterministic parts of theutilities. It finds that such tests then do not have any power. This implies that such tests have nopower...

The paper proposes an approach for evaluating the effect of flow fixed costs on the evaluation of environmental benefits with travel cost method. On a full annual perspective when recreational users incur relevant annual direct fixed expenses, their behaviour could be influenced by them. The...

Similar to many sub-Saharan African countries, Sudan has inherited a dual economy in the immediate post-independence era where a large agriculture-based rural traditional sector coexisted with a small non-agricultural modern sector. This functional dualism remained until the first oil shipment...