Yes why not?

in the traditional theories of interest the new classical economists have also an issue to explain interes from the assumption rational behaviour! So in a way interest is explained from intertemporal behaviour of consumers and economic trade offs by firms in terms of capital budgeting

Thank you Jan H Jansen , but does interest make sense or is it rational from the inter-temporal behaviour of consumers and economic trade offs by firms in terms of capital budgeting? Is it fair to charge interest on shifted risk to consumers or other firms?

Yes it can.