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121.
Old‐age dependency ratios (OADR) are frequently used to measure the economic impact of U.S. population aging. However, at the state level youth‐dependence, and the “birth dearth,” are important. While federal expenditures on elder Social Security, Medicare, and Medicaid are large, state expenditures on dependent youth are much higher than on elders. The states are ranked by the OADR and three other dependency ratios that consider youth and a state's employment, fiscal outlay, and per‐capita income. Very different rankings are found. States with higher OADR ratios had lower total dependency expenditures. Projections for 2030 are compared with 2000 results.  相似文献   
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The other great transformation in the world besides the rising power of the emerging economies has been the ever deeper penetration of the Internet in civil society and the economy. Alone among world leaders, French President Nicolas Sarkozy has sought to address the sticky issue of how to “civilize the Internet” in the G‐8, a key forum of global governance which France chairs this year. As a kind of historical document, in this section we publish Sarkozy's speech to the leading information technologists and entrepreneurs he gathered in Paris in May for the first “e‐G‐8” Summit. Eric Schmidt, executive chairman of Google, was among the attendees. We include his report to the 21st Century Council of the Nicolas Berggruen Institute.  相似文献   
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Simons and Burt's (2011) social schematic theory (SST) of crime posits that adverse social factors are associated with offending because they promote a set of social schemas (i.e., a criminogenic knowledge structure) that elevates the probability of situational definitions favorable to crime. This study extends the SST model by incorporating the role of contexts for action. Furthermore, the study advances tests of the SST by incorporating a measure of criminogenic situational definitions to assess whether such definitions mediate the effects of schemas and contexts on crime. Structural equation models using 10 years of panel data from 582 African American youth provided strong support for the expanded theory. The results suggest that childhood and adolescent social adversity fosters a criminogenic knowledge structure as well as selection into criminogenic activity spaces and risky activities, all of which increase the likelihood of offending largely through situational definitions. Additionally, evidence shows that the criminogenic knowledge structure interacts with settings to amplify the likelihood of situational definitions favorable to crime.  相似文献   
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