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global periphery. Core states are those with
the highest value-added industrial manufac-
turing and service sectors, while peripheral
states are more dependent on agricultural
and raw materials exports – and, more
recently, on lower value-added manufactured
goods.world-systemstheorists identify states
that are semi-peripheral in that their exports
comprise a mix of higher and lower value-
added goods (Wallerstein, 1979, pp. 66–94).
Many core–periphery models, such as
that of Andre Gunder Frank, connect core–
periphery structures at a national scale with the
global core–periphery structure (Frank, 1967,
pp. 8220). In particular, such models have seen
primate cities in developing countries as nodal
points connecting national economies to the
global system, and as ‘suction pumps’ from
which surplus is siphoned out of peripheral
societies and into global circuits ofcapital
(Armstrong and McGee, 1985). Recent pro-
cesses ofglobalizationhave called into ques-
tion the degree of coherence of national
political economies, making the variants of
core–periphery theory that hinge on a hierarchy
of states more problematic. But the models that
emphasize crucial roles for cities in the devel-
oping world retain considerable relevance. jgl
Suggested reading
Armstrong and McGee (1985); Frank (1967);
Smith (2008 [1984]); Wallerstein (1979).
corporatization The spread of business
objectives, methods anddiscoursesinto the
non-profit and state sectors of society.
Schools and universities, hospitals, welfare
offices and so on are increasingly held to the
operating standards of private enterprise,
despite differing reasons for their existence,
resources and relationship tosociety. Talk of
‘cost centres’, ‘customers’, ‘products’, ‘mar-
kets’ and even ‘profitability’ (in relation, for
example, to university spin-offs of private
companies) grows more common. Non-
business organizations should strive for effi-
ciency and respond to changing social needs.
But the meaning of efficiency and responsive-
ness in these organizations ought perhaps to
be evaluated on different grounds than we
would apply to a corporation. esch
Suggested reading
Steck (2003).
correlation The degree of association
between two or more variables. In statistical
analyses, correlation coefficients varying
betweenþ/1.0 are measures of the good-
ness-of-fit of a relationship: a value of 1.0
indicates a perfect relationship. If values less
than 1.0 are squared, they indicate the propor-
tion of the variation in one variable than can
be accounted for statistically by the other(s): a
correlation of 0.8 indicates that 0.64 of
the variation can be accounted for. Positive
correlations indicate that as one variable
increases in value, so does the other: negative
correlations that as one increases in value,
the other decreases. In several variants of the
general linear model, notablyregression
analysis, the correlation between two variables
is denoted byrand the (multiple) correlation
among three or more variables byR. A correl-
ation coefficient is merely an indicator of
covariation among two or more variables
and is not a measure of causality, although a
high correlation may have important theoret-
ical implications. rj
cosmography The unified study of the
Earth in relation to the heavens, cosmography
arises from geocentric assumptions and a
belief in homologies between the spatial order
of terrestrial and celestial spheres. The spher-
ical geometry of celestial poles, great circles,
hemispheres and ecliptic can be projected on
to both Earth and sky and illustrated by the
armillary sphere, whose spherical lattice of the
five great circles, poles, axis and colures makes
it the symbol of cosmographic science (still to
be found on the flag of Portugal).Mathematical
cosmography had practical significance for
oceanic navigation, and early in moderneurope
cosmographers were often influential court
appointees(Fiorani,2005).Cosmographicorder
has given rise in many belief systems to ideas of
divinely ordered, cosmic harmony, reproduced
at varyingscales, including the human micro-
cosm, and to attempts to steer influences
believed to flow through the cosmos, often by
manipulating cosmographic diagrams and
images.Descriptive cosmographywas the classi-
fication and description of the contents
of the created cosmos, assumed to have an
order that reflected mathematical relations.
Incorporating both the mathematics of order
and description of contents, cosmography
eludes easy definition and courts intellectual
incoherence.
Cosmographic science peaked in early mod-
ern Europe, where cosmographies took the
form of illustrated books and maps that may
be regarded as precursors of the modern atlas.
Cosmographies became increasingly encyclo-
paedic in seeking to systematize spatially and
Gregory / The Dictionary of Human Geography 9781405132879_4_C Final Proof page 116 31.3.2009 9:45pm
CORPORATIZATION