139 research outputs found
Commentary on: Modified Levator Muscle Resection Using Putterman Müller’s Muscle-Conjunctival Resection-Ptosis Clamp
No full textSelf-Organization for Collective Action: An Experimental Study of Voting on Formal, Informal, and No Sanction Regimes
No full textEntrusting the power to punish to a central authority is a hallmark of civilization. We study a collective action dilemma in which self-interest should produce a sub-optimal outcome absent sanctions for non-cooperation. We then test experimentally whether subjects make the theoretically optimal choice of a formal sanction scheme that costs less than the surplus it makes possible, or instead opt for the use of informal sanctions or no sanctions. Most groups adopt formal sanctions when they are of deterrent magnitude and cost a small fraction (10%) of the potential surplus. Contrary to the standard theoretical prediction, however, most groups choose informal sanctions when formal sanctions are more costly (40% of the surplus). Being adopted by voting appears to enhance the efficiency of both informal sanctions and non-deterrent formal sanctions.
Self-Organization for Collective Action: An Experimental Study of Voting on Formal, Informal, and No Sanction Regimes
No full textEntrusting the power to punish to a central authority is a hallmark of civilization. We study a collective action dilemma in which self-interest should produce a sub-optimal outcome absent sanctions for non-cooperation. We then test experimentally whether subjects make the theoretically optimal choice of a formal sanction scheme that costs less than the surplus it makes possible, or instead opt for the use of informal sanctions or no sanctions. Most groups adopt formal sanctions when they are of deterrent magnitude and cost a small fraction (10%) of the potential surplus. Contrary to the standard theoretical prediction, however, most groups choose informal sanctions when formal sanctions are more costly (40% of the surplus). Being adopted by voting appears to enhance the efficiency of both informal sanctions and non-deterrent formal sanctions.formal sanctions, informal sanctions, experiment, voting, cooperation, punishment.
Müller’s Muscle Conjunctival Resection Ptosis Repair in the Aesthetic Patient
No full textAbstractPosterior eyelid ptosis repair via the Müller’s muscle-conjunctival resection procedure is an effective, reliable, and simple technique for periorbital rejuvenation in the aesthetic patient. This procedure may be performed with other periorbital rejuvenation techniques without sacrificing results. Appropriate candidates are patients with maintained levator function whose ptotic upper eyelid elevates close to a normal eyelid level upon instillation of phenylephrine drops to the superior conjunctival fornix
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