Economist

n. specialist in economics, expert in the study of the management of goods and services, economic expert

n. weekly British news and international affairs magazine covering a wide variety of topics related to the field of economics and business

An economist is an expert in the social science of economics. The individual may also study, develop, and apply theories and concepts from economics and write about economic policy. Within this field there are many sub-fields, ranging from the broad philosophical theories to the focused study of minutiae within specific markets, macroeconomics analysis, microeconomics analysis or financial analysis, involving analytical methods and tools such as econometrics, statistics, economics computational models, financial economics, financial mathematics and mathematical economics.  Adam Smith is among the most famous economists, an early proponent of free market economics.
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Noun
1. an expert in the science of economics
(synonym) economic expert
(hypernym) social scientist
(hyponym) econometrician, econometrist
(member-holonym) economics profession

n. economist, specialist in economics, expert in the study of the management of goods and services

(n.)
One who is conversant with political economy; a student of economics.
  

(n.)
One who economizes, or manages domestic or other concerns with frugality; one who expends money, time, or labor, judiciously, and without waste.