You were discussing the growth models with your friend Gaston during spring break. He summarized that the basic difference between the Solow model and the Romer model is that the Solow model suffers from diminishing returns-each additional unit of capital has less benefit than the previous unit. The Romer model doesn't have the same problem as labor used to generate new ideas doesn't have diminishing returns. He hypothesizes that if you changed the law of motion to At+1 = At + zoL 1/2At that now the Romer model has diminishing returns to labor and will reach a steady state where growth is zero. Is he right?

You were discussing the growth models with your friend Gaston during spring break. He summarized that the basic difference between the Solow model and the Romer model is that the Solow model suffers from diminishing returns-each additional unit of capital has less benefit than the previous unit. The Romer model doesn't have the same problem as labor used to generate new ideas doesn't have diminishing returns. He hypothesizes that if you changed the law of motion to At+1 = At + zoL 1/2At that now the Romer model has diminishing returns to labor and will reach a steady state where growth is zero. Is he right?

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Based on article "Technology and economic growth: From Robert Solow to Paul Romer" by Rui Zhao, Solow mentioned technology (At) and capital per unit of effective labor (Kt) have a significant influence on a country's ability to “catch-up” or “converge” to a steady-state level (K*). Why did Solow model assume At as a black box in economics? Explain in brief.
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Based on article "Technology and economic growth: From Robert Solow to Paul Romer" by Rui Zhao, Solow mentioned technology (At) and capital per unit of effective labor (Kt) have a significant influence on a country's ability to “catch-up” or “converge” to a steady-state level (K*). Using the central equation of the Solow model, discuss the influence of At and Kt on country's ability to grow and move to a steady-state level (K*).
Based on article "Technology and economic growth: From Robert Solow to Paul Romer" by Rui Zhao, Romer has successfully opened the black box and explained how technology can be produced by an economy without having to rely on external (exogenous) technology. Using the central equations of the Romer’s model, technology (At) can grow to At + 1 due to efforts in R&D and technology spillover. Explain the role of three key sectors in the economy to drive technological-based economic growth.
Based on article "Technology and economic growth: From Robert Solow to Paul Romer" by Rui Zhao, Romer has successfully opened the black box and explained how technology can be produced by an economy without having to rely on external (exogenous) technology. Using the central equations of the Romer’s model. discuss how technology (A)t can be produced by a country to stimulate economic growth?
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