The correct answer is: A. Walker’s Model.
Walker’s Model is a theory of economic growth that was developed by Michael Walker in the 1980s. The model argues that economic growth is driven by the accumulation of physical and human capital, as well as by technological progress. The model also argues that government intervention in the economy can be counterproductive, as it can lead to a misallocation of resources.
Gordon’s Model is a theory of economic growth that was developed by Robert J. Gordon in the 1990s. The model argues that economic growth is driven by a number of factors, including technological progress, population growth, and capital accumulation. However, Gordon argues that these factors have been declining in recent decades, and that this has led to a slowdown in economic growth.
MM Mode is a type of macroeconomic model that was developed by Franco Modigliani and Milton Friedman in the 1950s. The model argues that the economy is self-regulating, and that government intervention is not necessary to achieve economic stability.
Residuals Theory is a theory of economic growth that was developed by Robert Solow in the 1950s. The model argues that economic growth is driven by technological progress, and that government intervention can help to promote technological progress.
In conclusion, the correct answer is: A. Walker’s Model.