I examine a manipulation scheme that public authorities can use to exercise more discretion in public procurement. I propose that regression discontinuity manipulation tests can be implemented to identify manipulative authorities. I investigate the European Union public procurement data set. I...

Experimental research in psychology has found a strong negative association between traffic congestion and stress levels of commuters. Here, we investigate the consequences of morning traffic congestion on stock returns. Using traffic data and stock market returns from New York City and London,...