We study the pricing and tipping behaviour of users of the online service `Google Answers'. While they set a price for the answer to their question ex ante, they can additionally give a tip to the researcher ex post. We develop a model that is based on reciprocal theories of social preferences...

This article considers a wide class of censoring problems and presents a construction rule for an objective function. This objective function generalises the orginary likelihood as well as particular "likelihoods" used for estimation in several censoring models. Under regularity conditions the...

In this paper we propose an integrated framework for the analysis of earnings inequality and mobility, which enables the analysis of the distributional dimension of inequality reduction from mobility, an assessment of the economic drivers of mobility and a sense of which drivers are equalising...

This paper uses microdata for 19 African countries to examine the gender difference in maths test scores amongst primary school children. There is a significant difference in maths test scores in favour of boys, similar to that previously observed in developed countries. This difference cannot...

School inspections are an important part of the accountability framework for education in England. In this paper we use a panel of schools to evaluate the effect of a school failing its inspection. We collect a decade’s worth of data on how schools are judged across a very large range of...

Much of the economic literature on education treats the actual process of learning as a `black box'. While these `black box' models have many interesting uses, they are of little use when a college seeks advice about reallocating resources from one input to another (e.g. from lecture hours to...

This paper contributes to understanding the ‘London Effect’, focussing on the role of the ethnic composition. The aim is to understand the statistical contribution to the London premium of ethnic composition. I also analyse data on the performance of recent immigrants. The results confirm...

Much of the economic literature on education treats the process of learning as a `black box'. While such models have many interesting uses, they are of little use when a college seeks advice about reallocating resources from one input to another (e.g. from lecture hours to seminars). Commenting...

Estimates of intergenerational economic mobility that use point in time measures of income and earnings suffer from lifecycle and attenuation bias. We consider these issues for the National Child Development Study (NCDS) and British Cohort Study (BCS) for the first time, highlighting how common...

This paper assesses the impact of academic selection at age 11 on children in the minority of areas that still operate such a system. The answers are very clear. Overall there is little or no impact on attainment, but those educated in grammar schools do substantially better (around four grade...