Trade involves the transfer of goods or services from one person or entity to another, often in exchange for money. A system or network that allows trade is called a market.
The product of mental labor — science — always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production.
Karl Marx Addenda, "Relative and Absolute Surplus Value" in Economic Manuscripts (1861–63).
An EU team examined Europe's drought history to predict the future hazard. Results included a major impact database, pan-European vulnerability and riks maps, as well as options for drought management for different geo-climatic settings.
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