Synthesized answer
The provided passages do not explicitly state what questions remain unanswered within "The Theory of Economic Development."
However, the text does highlight a fundamental question posed by Schumpeter regarding the distinction between phenomena related to running an existing firm and those related to creating a new one. Schumpeter asks, "Is it really artificial to keep separate the phenomena incidental to running a firm and the phenomena incidental to creating a new one?" [Passage 2] The passages do not reveal whether this, or any other, question remains unanswered by the book.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
The Theory of Economic Development against the historical background of three great periods of economic thought in the last two decades.
Title: The Theory of Economic Development by Joseph Alois Schumpeter Description: Schumpeter proclaims in this classical analysis of capitalist society first published in 1911 that economics is a natural self-regulating mechanism when undisturbed by "social and other meddlers." In his preface he argues that despite weaknesses, theories are based on logic and provide structure for understanding fact. Of those who argue against him, Schumpeter asks a fundamental question: "Is it really artificial to keep separate the phenomena incidental to running a firm and the phenomena incidental to…