What Alfred marshall contribute in economic?

i belive that econmic is a class that all student take

Alfred marshall made a heroic assumption of 'cetris paribus' which means other things being equal/constant in economics. This assumption he used for the theories he put forth viz. theory of...

Alfred Marshall defines economics as, "The science which studies human behaviour as a relationship between ends and scarce means, which have an alternative use."

Marshall's economic theories, although very elaborate, have been viewed as eclectic and lacking in internal consistency.

lionel robbin was the only critic of dr.alfred marshall's defination lionel robbin was the only critic of dr.alfred marshall's defination