Q.Who has given scarcity definition of economics ?

The correct option is (a) Robbins: the scarcity definition is Robbins'.

Lionel Robbins defined economics as "the science which studies human behaviour as a relationship between ends and scarce means which have alternative uses." This scarcity definition shifts the focus of economics to the problem of choice arising from limited resources and unlimited wants — the central economic problem.

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The correct option is (a) Alfred Marshall: the welfare definition is Marshall's.

The statement "Economics is a study of mankind in the ordinary business of life" is the opening line of Alfred Marshall's welfare definition of economics, which studies how people earn and use income to promote material welfare.

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Thiruvalluvar's economic ideas dealt with poverty, agriculture and wealth — all of the above.

The ancient Tamil thinker Thiruvalluvar, in the Thirukkural, expressed several economic ideas. He treated wealth (porul) as essential for a good life, praised agriculture as the foundation of the economy and the noblest occupation, and described poverty as a great …