  This paper extends Xing's (2023abcd) optimal growth models of catching-up
economies from the case of production function switching to that of economic
structure switching and argues how a country develops its economy by endogenous
structural transformation and efficient resource allocation in a market
mechanism. To achieve this goal, the paper first summarizes three attributes of
economic structures from the literature, namely, structurality, durationality,
and transformality, and discuss their implications for methods of economic
modeling. Then, with the common knowledge assumption, the paper extends Xing's
(2023a) optimal growth model that is based on production function switching and
considers an extended Ramsey model with endogenous structural transformation in
which the social planner chooses the optimal industrial structure, recource
allocation with the chosen structure, and consumption to maximize the
representative household's total utility subject to the resource constraint.
The paper next establishes the mathematical underpinning of the static,
dynamic, and switching equilibria. The Ramsey growth model and its equilibria
are then extended to economies with complicated economic structures consisting
of hierarchical production, technology adoption and innovation, infrastructure,
and economic and political institutions. The paper concludes with a brief
discussion of applications of the proposed methodology to economic development
problems in other scenarios.
