In the past couple of weeks, people who care about American politics and about Congress have lost two important figures: Harry McPherson and James Q. Wilson.

There may be some efforts to slow down IPAB implementation by refusing to feed it with funding. So the likelihood is that this may die a slow, quiet death over several years, as opposed to the great horrors that people are imagining.

Hires, quits, and layoffs exhibit strong, highly nonlinear relationships to employer growth rates in the cross section. Simple statistical models of these relationships greatly improve our ability to account for fluctuations in aggregate worker flows and enable us to construct synthetic measures of hires, separations, quits, and layoffs back to 1990.

The question of what enables some militaries to innovate effectively is of great interest to both scholars and commanders. However, the traditional models of military innovation fail to capture the complex innovation process.

Editor’s note: Jim Manzi is the author of “Uncontrolled: the Surprising Payoff of Trial-and-Error for Business, Politics, and Society.” He is the founder and chairman of Applied Predictive Technologies, a global provider of predictive analytics software. Manzi is a senior fellow at the Manhattan Institute and a contributing editor at...

A review of developments concerning the use of trading models that have emergedsince the original version of this monograph was published.

Community colleges are subsidized through direct state and local government appropriations and through student grant programs. Every student who drops out represents an investment loss by the taxpayers in that student's uncompleted education.

Where Obama went wrong on education – and what Romney needs to say