Why Do Respondents Answer “Don’t Know” in Political Surveys?

Using subjective expectations to forecast longevity: do survey respondents know something we don't know?

Old-age mortality is notoriously difficult to predict because it requires not only an understanding of the process of senescence-which is influenced by genetic, environmental, and behavioral factors-but also a prediction of how these factors will evolve. In this paper I argue that individuals are uniquely qualified to predict their own mortality based on their own genetic background, as well as...

Superior Capsule Reconstruction: What Do We Know?

The management of irreparable rotator cuff tears remains challenging. Since its introduction by Mihata in 2012, superiorcapsule reconstruction (SCR) has grown in popularity at an astonishingly rapid rate. The aim of this article is to providea comprehensive review of the available literature, in order to highlight what has so far been published on SCR,covering all aspects including biomechanica...

Do We Know What We Do not Know? A Response to Celine Bonnet

Cosmological parameters: Do we already know the final answer

Some of the arguments which support the strong concensus for an Ωo = 0.3, λo = 0.7 model are reexamined. Corrections for Malmquist bias, local flow and metallic-ity suggest a revised value for Ho of 63 ± 6 km/s/Mpc, improving the age problems for an Ωo = 1 universe. The latest CMB results may require a high baryon density and hence new physics, for example a strong lepton asymmetry. Difficultie...

Forms and Causes of Political Terrorism: What Do We Know?