The strategic stimulus to economic development in Schumpeter's analysis is innovation, defined as the commercial or industrial application of something new---a new product, process or method of production, a new market or source of supply, a new form of commercial, business or financial organization.
Joseph A. Schumpeter (2011). “The Theory of Economic Development: An Inquiry into Profits, Capital, Credit, Interest, and the Business Cycle”, p.19, Transaction Publishers