Im Rahmen dieser Arbeit wurden Ambiguitätsindikatoren aus Erkenntnissen der Ambiguitäts-, Medien- und Kommunikationsforschung abgeleitet, die ambige Informationszustände beschreiben bzw. unter denen eine erhöhte wahrgenommene Unsicherheit besteht oder entstehen kann. Diese lauten: Zu wenige...

The use of scouting and economic thresholds has not been accepted as readily for managing weeds as it has been for insects, but the economic threshold concept is the basis of most weed management decision models available to growers. A World Wide Web survey was conducted to investigate...

In an auction with a buy price, the seller provides bidders with an option to end the auction early by accepting a transaction at a posted price. The "Buy-It-Now" option on eBay is a leading example of an auction with a buy price. This paper develops a model of an auction with a buy price in...