In reality, the so called 'law of one price' does not always hold, especially since the consumers' search for information bears positive costs. This is more than often also due to the models assumption of fully informed consumers. The present paper deeply investigates the topic of positive...

Based upon the foundations of mean-variance decision-making theory, we demonstrate that a change in the risk situation of an international enterprise open currency position does not inevitably require a corresponding hedging accommodation. Given a new risk situation, whether a revision of the...