A principal who knows her type can face public testing to help attract endorsements from agents. Tests are pass/fail and have an innate toughness (bias) corresponding to a trade-off between the higher probability of passing a softer test and the greater impact on agents’ beliefs from passing a...

Little is known by economists about how emotions affect productivity. To make persuasive progress, some way has to be found to assign people exogenously to different feelings. We design a randomized trial. In it, some subjects have their happiness levels increased, while others in a control...

While herding has long been suspected to play a role in financial market booms and busts, theoretical analyses have struggled to identify conclusive causes for the effect. Recent theoretical work shows that informational herding is possible in a market with efficient asset prices if information...

We perform an experiment designed to assess the accuracy of beliefs about distributions. The beliefs relate to behavior (mobile phone purchasing decisions, hypothetical restaurant choices), attitudes (happiness, politics) and observable characteristics (height, weight) and are typically formed...

We live in a high-divorce age. Parents worry about the possibility of negative effects upon their children. This paper tests whether recent parental-divorce has deleterious consequences for grown children. Under controlled conditions, it measures students’ happiness with life, and their...

In an incentivized experiment we identify a powerful and ubiquitous bias: individuals regard their own characteristics and choices as more common than is the case. We establish this "false consensus" bias in terms of happiness, political stance, mobile phone brand and on the attitude to...

Cognitive biases have been a recognised feature of research into human behaviour...

We undertook the first market trading experiments that allowed heterogeneously informed subjects to trade in endogenous time, collecting over 2000 observed trades. Subjects’ decisions were generally in line with the predictions of exogenous-time financial herding theory when that theory is...

Many governments wish to assess the quality of their universities. A prominent example is the UK’s new Research Excellence Framework (REF) 2014. In the REF, peer-review panels will be provided with information on publications and citations. This paper suggests a way in which panels could...

Economists and behavioural scientists are beginning to make extensive use of measures of subjective well-being, and such data are potentially of value to policy-makers. A particularly famous difficulty is that of “priming”: if the order or nature of survey questions changes people’s likely...