Rings containing a field of characteristic zero

Open access via the Springer Compact AgreementPeer reviewedPublisher PD

Belabored: the work of style

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Review of Richard Healey, Gauging What's Real.

Review of Richard Healey's 2008 book. To appear in MIND

Gold in Devono-Carboniferous red beds of northern Britain

We are grateful to D. Craw and an anonymous reviewer for comments that helped to clarify the paper. Research was funded by NERC grants NE/L001764/1 and NE/M010953/1.Peer reviewedPublisher PD

On Spacetime Functionalism

Eleanor Knox has argued that our concept of spacetime applies to whichever structure plays a certain functional role in the laws (the role of determining local inertial structure). I raise two complications for this approach. First, our spacetime concept seems to have the structure of a cluster concept, which means that Knox's inertial criteria for spacetime cannot succeed with complete generality. Second, the notion of metaphysical fundamentality may feature in the spacetime concept, in which case spacetime functionalism may be uninformative in the absence of answers to fundamental metaphysical questions like the substantivalist/relationist debate

Do research assessment exercises raise the returns to publication quality? Evidence from the New Zealand market for academic economists

Many countries have introduced research assessment exercises to help measure and raise the quality of research in their university sector. But there is little empirical evidence on how these exercises, such as the Quality Evaluation of the Performance Based Research Fund (PBRF) in New Zealand and the recently aborted Research Quality Framework (RQF) in Australia, affect the signals that researchers observe in the academic labour market. Since these assessments aim to raise research quality, individual academics should perceive rising returns to publication quality at the expense of the returns to quantity. Data we collected on the rank and publication records of New Zealand academic economists prior to the introduction of the PBRF and just after the second assessment round are used to estimate the changing returns to the quantity and quality of journal articles

The economic consequences of ‘brain drain’ of the best and brightest: Microeconomic evidence from five countries

Brain drain has long been a common concern for migrant-sending countries, particularly for small countries where high-skilled emigration rates are highest. However, while economic theory suggests a number of possible benefits, in addition to costs, from skilled emigration, the evidence base on many of these is very limited. Moreover, the lessons from case studies of benefits to China and India from skilled emigration may not be relevant to much smaller countries. This paper presents the results of innovative surveys which tracked academic high achievers from five countries to wherever they moved in the world in order to directly measure at the micro level the channels through which high-skilled emigration affects the sending country. The results show that there are very high levels of emigration and of return migration among the very highly skilled; the income gains to the best and brightest from migrating are very large, and an order of magnitude or more greater than any other effect; there are large benefits from migration in terms of postgraduate education; most high-skilled migrants from poorer countries send remittances; but that involvement in trade and foreign direct investment is a rare occurrence. There is considerable knowledge flow from both current and return migrants about job and study opportunities abroad, but little net knowledge sharing from current migrants to home country governments or businesses. Finally, the fiscal costs vary considerably across countries, and depend on the extent to which governments rely on progressive income taxation