define indicator. Explain the various types of indicators.
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An indicator is a substance that changes its colour in acidic and basic medium.An indicator shows one colour in acidic medium and different colour in basic medium so that they are called indicators. lndicators derived from natural sources are called natural indicators.
Explanation:
There are three types of economic indicators: leading, lagging and coincident. Leading indicators point to future changes in the economy. They are extremely useful for short-term predictions of economic developments because they usually change before the economy changes.
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