'The formation of a fictitious capital is called capitalisation.' It represents a claim to property rights or income. Marx saw the origin of fictitious capital in the development of the credit system and the joint-stock system.

In terms of mainstream financial economics, fictitious capital is the net present value of expected future cash flows. Fictitious capital could also be defined as 'tradeable paper claims to wealth', although tangible assets may themselves under certain conditions also be vastly inflated in price.Such ownership is real and legally enforced, as are the profits made from it, but the capital involved is fictitious it is 'money that is thrown into circulation as capital without any material basis in commodities or productive activity'. Fictitious capital could be defined as a capitalisation on property ownership.Effectively, fictitious capital represents 'accumulated claims, legal titles, to future production' and more specifically claims to the income generated by that production. The market value of fictitious capital assets (such as stocks and securities) varies according to the expected return or yield of those assets in the future, which Marx felt was only indirectly related to the growth of real production. Fictitious capital contrasts with what Marx calls 'real capital', which is capital actually invested in physical means of production and workers, and 'money capital', which is actual funds being held. It is introduced in chapter 25 of the third volume of Capital. Fictitious capital (German: fiktives Kapital) is a concept used by Karl Marx in his critique of political economy.

Capital by karl marx