We design a donations vs. own money choice experiment comparing three different treatments. In two of the treatments the pay-offs are hypothetical. In the first of these, a short cheap talk script was used, and subjects were required to state their own preferences in this scenario. In the second, subjects were asked to state how they believed an average student would respond to the choices. In ...

of High-Purity Definitive Endoderm from Human Parthenogenetic Stem Cells using an in vitro Analog of the Primitive Streak," by Nikolay Turovets et al., in Cell Transplantation, Vol. 20, No. 6; June 2011 U.S. stem cell scientists breathed a sigh of relief this July when a federal judge upheld the Obama administration’s expansion of stem cell research. He ruled that work on existing embryonic ste...