British West Indies
Economic
and Social
Development
319
in the early nineteenth century, and various other crops experienced brief
periods of significance in some colonies. Occasionally, minor crops pro-
duced by slaves in their own time entered the export markets
—
as, for
example, arrowroot in St. Vincent and Barbados
23
—
but the lion's share
of British West Indian external trade consisted of plantation-produced
sugar and rum.
National income estimates are rare for the British West Indies in the
period before 1850. Accounts have, however, been prepared for Jamaica in
1832 and 1850, and Guyana in 1832 and 1852, calculated by Gisela
Eisner and Michael Moohr, respectively.
24
Unfortunately, these data are
not easily compared because Moohr's estimates are expressed only in 1913
prices, whereas Eisner offers estimates at both current and 1910 prices.
The difference is significant, particularly due to the substantial decline in
metropolitan sugar prices over the long term. In spite of these deficien-
cies,
the accounts provide the best approach to an understanding of the
components of the total economies.
According to Eisner, exports accounted for 41.4 percent of the Gross
Domestic Product of Jamaica in 1832, at current prices, or 31.7 percent at
I9ioprices, compared tO43-3percent for Guyana at I9i3prices. Recalcu-
lating Moohr's data gives roughly 56 percent at 1832 prices. These gross
contrasts show at least that the internal economy of Jamaica was relatively
very important, since comparison with the "pure" plantation economies of
Barbados and the Leeward Islands would certainly reveal an even greater
disparity than Guyana. Eisner estimated "food production for local con-
sumption" at 17.8 percent of Gross Domestic Product in Jamaica in 1832
at current prices (or 28.6 percent at 1910
prices),
a proportion very similar
to Moohr's estimate for Guyana. Eisner attributed the vast majority of this
food production to "Ground Provisions," meaning the basic tuber and tree
crops cultivated by the slaves on their provision grounds. Other items that
contributed significantly to Jamaica's Gross Domestic Product in 1832
were ownership of
houses
(11.0 percent at current prices), public adminis-
tration (6.4 percent), manufacturing for local consumption (6.3 percent),
and distribution (5.7 percent).
Of particular interest in this national-income accounting exercise is the
categorization of Gross Domestic Product, in which the models of both
15
). S. Handler, "The History of Arrowroot and the Origin of Peasantries in the British West Indies,"
Journal of Caribbean History 2 (1971), 46—93.
** Gisela Eisner, Jamaica, 1830—7930: A Study in
Economic
Growth (Manchester, 1961), 118—9;
Michael Moohr, "The Economic Impact of Slave Emancipation in British Guiana, 1832-1852,"
Economic
History Review 25 (1972), 589.
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