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In [1], we presented an example to show that using occupancy modelling to adjust for imperfect detection can make the bias worse than not making any adjustment for imperfect detection. The intuition behind the example is that imperfect detection is only one of a number of problems that can introduce measurement error into the data and it is a mistake to focus exclusively on only one kind of mea...

Since 1996 hundreds of U.S. facilities have certified their environmental management systems (EMS) to ISO 14001. While EMS certification occurs at the facility level, little is known about how parent companies influence facility-level certification, and even less is known about what factors are more influential to the corporatelevel decisions than others. This study begins to understand these i...

This paper studies a model of social learning with externalities and possibly with limited observability of past actions. Bayesian agents sequentially choose an action each, after observing the actions of a subset of preceding agents. These actions and a private signal, conditionally independent across agents, supply information about the common state of the world. Each agent’s payoff depends o...

Social exclusion and inclusion from groups, as well as the distribution of resources, are fundamental aspects of social life, and serve as sources of conflicts that bear on issues of fairness and equality, beginning in childhood. For the most part, research on social exclusion and allocation of resources has not focused on the issue of group membership. Yet, social exclusion from groups and the...

British Journal of Ophthalmology (ISSN 0007-1161) is published monthly by BMJ Publishing Group and is distributed in the USA by Air Business Ltd. Periodicals postage paid at Jamaica NY 11431 POSTMASTER: send address changes to British Journal of Ophthalmology, Air Business Ltd, c/o Worldnet Shipping Inc., 156-15, 146th Avenue, 2nd Floor, Jamaica, NY 11434, USA . MORE CONTENTS Cover image: Image...