According to Arthur Cole, which of the following was NOT a type of entrepreneur in the 1950s?

The type of entrepreneur that is identified as not fitting into Arthur Cole's categories from the 1950s is "The Lucky Fool." The classification by Cole aimed to outline various archetypes of entrepreneurs who contributed to business and economic growth during that era.

"The Innovator," "The Organization Builder," and "The Calculating Inventor" are all characterized by specific behaviors and attributes that defined the entrepreneurial landscape of the time. Innovators were known for creating new products or services, pushing boundaries with original ideas. Organization Builders focused on scaling operations and establishing structured businesses, showcasing the importance of management and teamwork. The Calculating Inventor represents individuals who not only invent but also strategically approach their ventures with a keen understanding of the market.

In contrast, "The Lucky Fool" suggests a more whimsical or random approach to entrepreneurship, emphasizing luck or chance rather than the strategic thinking and innovation that were hallmarks of successful entrepreneurs in that period. Thus, this option does not align with Cole's framework and highlights the significant distinction between different entrepreneurial characters as envisioned by him.