High-precision radiocarbon measurements of contemporaneous tree-ring wood from the British Isles and New Zealand: AD 1850-950.

The University of Waikato, Hamilton, New Zealand and The Queen's University of Belfast, Northern Ireland radiocarbon dating laboratories have undertaken a series of high-precision measurements on decadal samples of dendrochronologically dated oak (Quercus petraea) from Great Britain and cedar (Libocedrus bidwillii) and silver pine (Lagarostrobos colensoi) from New Zealand. The results show an average hemispheric offset over the 900 yr of measurement of 40±13 yr. This value is not constant but varies with a periodicity of about 130 yr. The Northern Hemisphere measurements confirm the validity of the Pearson et al. (1986) calibration dataset.

Calibration of the Radiocarbon Time Scale for the Southern Hemisphere: AD 1850-950

We have conducted a series of radiocarbon measurements on decadal samples of dendrochronologically dated wood from both hemispheres, spanning 1000 years (McCormac et al. 1998; Hogg et al. this issue). Using the data presented in Hogg et al., we show that during the period AD 950-1850 the 14C offset between the hemispheres is not constant, but varies periodically (~130 yr periodicity) with amplitudes varying between 1 and 10‰ (i.e. 8-80 yr), with a consequent effect on the 14C calibration of material from the Southern Hemisphere. A large increase in the offset occurs between AD 1245 and 1355. In this paper, we present a Southern Hemisphere high-precision calibration data set (SHCal02) that comprises measurements from New Zealand, Chile, and South Africa. This data, and a new value of 41 ± 14 yr for correction of the IntCal98 data for the period outside the range given here, is proposed for use in calibrating Southern Hemisphere 14C dates.

Pierre Bourdieu as a Sociologist of the Economy and Critic of 'Globalisation'

This article examines Pierre Bourdieu's sociology of the economy and his more recent politically engaged interventions on 'globalisation'. Many scholars regard these as not being in the same academic league as his classic studies on taste, academia, and state elites, etc., and, instead, dismiss them as a private matter or even, as the spleen of Pierre Bourdieu, the individual. This paper questions this disjunction of the 'academic' and 'politically engaged' sides of Pierre Bourdieu's work. First, it argues that his most recent interventions against a neo-liberal globalisation were the logical result of a particular definition of intellectual practice that had been outlined before in his sociology of the intellectual field. It then demonstrates that Bourdieu's economic sociology and critique of contemporary capitalism not only does not contradict his earlier research, but that it provides valuable and original insights into the current transformation of the political economy of the advanced capitalist countries. The paper concludes with a suggestion of how to strengthen the theoretical foundation of Bourdieu's analysis of contemporary capitalism by relating it to and making it compatible with alternative approaches in the tradition of critical political economy.