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We show that the no betting characterisation of the existence of common priors over finite type spaces extends only partially to improper priors in the countably infinite state space context: the existence of a common prior implies the absence of a bounded agreeable bet, and the absence of a...
Persistent link: https://www.econbiz.de/10010684333
A few species within the genus Colchicum of the Colchicaceae family, a small group of species native to the transitional belt of the Mediterranean and the Middle East deserts, are characterized by unique morphological traits: nectarial appendages that occur at the base of the perianth segments...
Persistent link: https://www.econbiz.de/10010699062
We consider the menu size of auctions as a measure of auction complexity and study how it affects revenue. Our setting has a single revenue-maximizing seller selling two or more heterogenous items to a single buyer whose private values for the items are drawn from a (possibly correlated) known...
Persistent link: https://www.econbiz.de/10010659918
An agent needs to decide which of two available actions, A or B, to take. The agent's payoffs are such that A dominates B, i.e., taking A yields a better payoff than taking B, in every contingency. On the other hand, the agent's expected payoffs, given the action taken, are in the reverse order,...
Persistent link: https://www.econbiz.de/10010659919
In today’s increasingly interconnected world, deciding with whom and at what level to cooperate becomes a matter of increasing importance as societies become more globalized and large-scale cooperation becomes a viable means of addressing global issues. This tension can play out via...
Persistent link: https://www.econbiz.de/10010659920
Persistent link: https://www.econbiz.de/10010662947
Insect herbivores often use chemical signals obtained from their food plants to deter enemies and/or attract sexual partners. Do plant-based visual signals act similarly, i.e., repel consumers' enemies and appeal to potential mates? We explored this question using the pollen-feeding beetle...
Persistent link: https://www.econbiz.de/10010662948
Persistent link: https://www.econbiz.de/10010662949
Are good people motivated to behave in accordance the moral truth whatever it is? Michael Smith, who has named this motivation the de-dicto moral motivation, famously criticized it. According to Smith, good people are instead motivated directly by more concrete moral concerns, such as “the...
Persistent link: https://www.econbiz.de/10010714079
For a random permutation π on {1,2,…,n} for fixed n, and for M⊆{1,2,…,n}, we analyse the distribution of the combined length L=L(π,M) of all cycles of π that contain at least one element of M. We give a simple, explicit formula for the probability of every possible value for L (backed...
Persistent link: https://www.econbiz.de/10010714080