economy economics sri lanka adam smith wholesale price index monetary policy income expenditure nia investments savings output srr financial market report medium celeb debit cards credit cards bartar functions of money reverse repo bank rate credit creation money financial system central bank justin bieber marshall j curve imports absolute advantage dollar bop europe international trade value of money exports chemistry business studies finance management revaluation devaluation japan uk mathematics marketing ppb ppf ppc command npv positive finance sex normative price controls subsidy producer surplus consumer surplus taxation yed xed pes ped ced equilibrium historical cost materiality entity concept concepts duality accounting price levels measures taken against inflation base year inflation inflation rate gdp deflator absolute prices general prices creeping inflation comparative prices hyper inflation colombo consumers price index fiscal policy disinflation us economy deflation government and inflation demand pull inflation average product long run marginal product fixed cost short run marginal cost monopolistic competition oligopoly perfect competition monopoly law of diminishing returns variable inputs economies of scale fixed inputs variable cost population economic growth lorenze curve investment pqli economic development hdi unemployment sustainable development employment equity hpi economic growth rate gini coeffecient social capital venture capital deaths births
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