Teorja i praktyka ekonomji.

[Warsaw, G. Centnerszwer], 1897.

8vo, pp. 40; title-page and last leaf reinforced at gutter, a few creases, but a very good copy in later cloth-backed dark green boards.


US $206€177

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First edition, very rare, of Heryng’s Theory and practice of economics. Zygmunt Heryng, Polish economist and political activist, was deeply concerned with economics as a science. He saw it as a systematic and conscious pursuit of efficiency in resource allocation in relation to targets. One of the categories he cherished was ‘social energies’, a concept he uses in relation to demand and supply, which he describes as ‘mental states’, or desires. Averse to the use of macro-data (average combinations and aggregate data) in the analysis of economic phenomena, Heryng believed that statistics should instead concentrate on presenting present figures and facts in the form of properly grouped raw material (micro-data), for a more precise identification of factors influencing people’s behaviour.

OCLC lists no copies outside Poland.

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