Investment behavior is analyzed using a dynamic portfolio model including off-farm income. The correlation structure of off-farm income and asset returns and the ratio of off-farm income to wealth is shown to affect portfolio choice. Empirical analysis indicates that off-farm income tends to...

Traffic accidents with wild boar have increased rapidly over the last years in Sweden. This paper calculates and predicts costs of current and future accidents, totally and for different Swedish counties, based on estimates of wild boar populations. A logistic population model is assumed, and...

Profits from violating the quota, charge and permit market systems are compared. The results indicate that, for a given permit price, the violation profits of the charge and permit market systems are the same and exceed the profits from violating a quota system if the optimal use of inputs in a...