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This article describes results of a study investigating the potential of using social network analysis to evaluate programs that aim at improving schools by fostering greater collaboration between teachers. The goal of this method is to use data about teacher collaboration within schools to map the distribution of expertise and resources needed to enact(More)
This article attempts to bridge and contribute to three related lines of inquiry: the effect of economic organization on cultural diversity; the origins of career specialism; and the contrast between market and firm as alternative modes of governance. In particular, I use the natural experiment engendered by the transformation of Hollywood from the(More)
Since the foundation of the tissue bank at the District Institute for Blood Donation--and Transfusion Service of Leipzig in 1966 the range of production and the assortment of nonvital tissue transplants has considerably increased. The amount of clinical establishments and their requirements is considerably increased, in which the realization of demands is(More)
This paper tests the hypothesis that competition from charter schools improves the efficiency of traditional public schools. The analysis utilizes a statewide school-level longitudinal dataset of Michigan schools from 1994 to 2004. Fixed effect methods and two alternative estimations are employed. The results from three alternative estimation strategies(More)
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