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We geocode a data set of patents and their citation counts, including citations from abroad. This allows us to examine … academic R&D. With one important exception, results using citation weighted patents are similar to those using unweighted … patents. For example, estimates of the returns to density (jobs per square mile) are only slightly changed when using citation …
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technology. The emergence and rapid spread of nanotechnology offers a test case for how the world might act when confronted with … potentially creating new environmental and health risks. The author compares ethical issues identified by stakeholders in China …
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