Social experiments are powerful sources of information about the effectiveness of interventions. In practice, initial randomization plans are almost always compromised. Multiple hypotheses are frequently tested. "Significant" effects are often reported with p-values that do not account for...

Reaching for a new deal: ambitious governance, economic meltdown, and polarized politics / Theda Skocpol, Lawrence R. Jacobs -- Hard-fought legacy: Obama, congressional democrats, and the struggle for comprehensive health care reform / Lawrence R. Jacobs, Theda Skocpol -- Eliminating the market...

Over the last forty years, rising national income has helped reduce poverty rates, but this has been accompanied by an increase in economic inequality. While these trends are largely attributed to technological change and demographic shifts, such as changing birth rates, labor force patterns,...