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The Daily Insight

What is knife edge problem

Author

Rachel Hickman

Published Mar 19, 2026

If companies adjusted investment according to what they expected about future demand, and the anticipated demand was forthcoming, warranted growth would equal actual growth. … The result then would be a deceleration of growth. This property of Harrod’s growth model became known as Harrod’s knife-edge.

What is the knife-edge problem?

If companies adjusted investment according to what they expected about future demand, and the anticipated demand was forthcoming, warranted growth would equal actual growth. … The result then would be a deceleration of growth. This property of Harrod’s growth model became known as Harrod’s knife-edge.

Which is the knife-edge equilibrium in Harrod model?

Balance between G, Gw and Gn: Now for full-employment equilibrium growth Gn = Gw = G. But this is a knife-edge balance. For once, there is any difference between natural, warranted and actual rates of growth conditions of secular stagnation or inflation would be generated in the economy.

What is knife-edge problem in Harrod model?

Harrod (1939) concluded that the warranted rate of growth is a unique moving equilibrium, but a “highly unstable” one. This is named Harrod’s knife-edge instability or the Instability Principle.

What is Harrod problem?

The Harrod-Domar model is a Keynesian model of economic growth. It is used in development economics to explain an economy’s growth rate in terms of the level of saving and of capital. It suggests that there is no natural reason for an economy to have balanced growth.

What is golden age equilibrium?

In simple words, Golden age is a situation of smooth steady growth with full employment arising out of the equality of the ‘Desired’ and ‘Possible’ rates of accumulation and has been designated by Mrs. Joan Robinson as the Golden age equilibrium. … The existence of Golden age is the indicator of full employment level.

What does living on a knife edge mean?

Definition of on a/the knife-edge : in a dangerous or important situation in which two very different results are possible The election results hung on a knife-edge. a region resting on a knife-edge after several wars living on the knife-edge of poverty.

What is golden age in J Robinson model?

In simple words, Golden age is a situation of smooth steady growth with full employment arising out of the equality of the ‘Desired’ and ‘Possible‘ rates of accumulation and has been designated by Mrs. Joan Robinson as the Golden age equilibrium.

Who has given law of market?

Say’s Law of Markets was developed in 1803 by the French classical economist and journalist, Jean-Baptiste Say. Say was influential because his theories address how a society creates wealth and the nature of economic activity. To have the means to buy, a buyer must first have sold something, Say reasoned.

When did India enter the take off stage?

7 The beginning of take-off stage in India, according to Rostow (1960), was the launch of the First Five Year Plan (1951-1956). He further suggested that it is sixty years after the beginning of take-off that maturity is attained.

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What are the limitations of Harrod Domar model?

What are some of the key limitations / problems of the Harrod-Domar Growth Model? Increasing the savings ratio in lower-income countries is not easy. Many developing countries have low marginal propensities to save. Extra income gained is often spent on increased consumption rather than saved.

Why do economists use economic models?

Economists use models as the primary tool for explaining or making predictions about economic issues and problems. For example, an economist might try to explain what caused the Great Recession in 2008, or she might try to predict how a personal income tax cut would affect automobile purchases.

Who has propounded the theory of unbalanced growth?

Hirschman, Rostow, Fleming, Singer have propounded the concept of unbalanced growth as a strategy of development for the underdeveloped nations. The theory stresses the need for investment in strategic sectors of the economy, rather than in the all sectors simultaneously.

What is real national income?

Real national income is nominal or money national income (output) adjusted for inflation. … The most frequently used measure of national income is Gross Domestic Product (GDP).

What does Harrod call to highest attainable growth rate?

Warranted Growth Rate (Gw)- It is the growth rate which is attainable at full employment level. Natural Growth Rate(Gn)- It is the maximum growth rate that can be attained by an economy, given the natural resources.

Is Harrod Domar model relevant for countries like Pakistan?

Harrod Domar’s model is useful in shedding light on the current economic crisis being faced by Pakistan. Pakistan faces economic challenges such as rising poverty and unemployment, substantial domestic and external indebtedness, an inflated fiscal deficit and reduced investment.

What does walking on knives mean?

phrase [oft v-link PHR] To be on a knife-edge means to be in a situation in which nobody knows what is going to happen next, or in which one thing is just as likely to happen as another.

What is a knife edge setting?

The crown sits on top of a ring shank that is flat on the inside where the ring touches the finger. However, the outer edge of the ring is shaped like a ‘V’ that points outward from the finger. That is why this style of setting is commonly referred to as a knife-edge solitaire.

What is the edge of a knife called?

Point – The point is the part of the knife where the edge and spine come together. The point is often used for piercing. Tip – The tip is the forward part of the knife and includes the knife point. The tip is used for detailed or delicate cutting.

What is Robinsons theory?

Robinson. This equation shows that the rate of growth of capital is capable of increasing, if the net return of capital (P-w/P) rise in greater proportion than the capital-labour ratio. In Ricardian terms it means that capital accumulation is strengthened by a fall in the real wage rate.

What is Nelson's theory of level equilibrium trap?

The low-level equilibrium trap is a concept in economics developed by Richard R. Nelson, in which at low levels of per capita income people are too poor to save and invest much, and this low level of investment results in low rate of growth in national income.

What is stationary state in economics?

The “stationary state” in much of classical economics. was the notional end point of capitalist development, a stagnant, subsistence- wage economy reached as profit rates declined to zero and consumption. demand flagged.

Who is the father of economics?

The field began with the observations of the earliest economists, such as Adam Smith, the Scottish philosopher popularly credited with being the father of economics—although scholars were making economic observations long before Smith authored The Wealth of Nations in 1776.

What is the Keynesian zone?

In the Keynesian zone, the equilibrium level of real gross domestic product, GDP, is far below potential GDP. The economy is in recession, and cyclical unemployment is high. If aggregate demand shifts to the right or left in the Keynesian zone, it will determine the resulting level of output, and thus unemployment.

What is the Solow model of economic growth?

The Solow–Swan model or exogenous growth model is an economic model of long-run economic growth. It attempts to explain long-run economic growth by looking at capital accumulation, labor or population growth, and increases in productivity largely driven by technological progress.

What is capital in the Solow model?

Present capital stock (represented by K), future capital stock (represented by K’), the rate of capital depreciation (represented by d), and level of capital investment (represented by I) are linked through the capital accumulation equation K’= K(1-d) + I.

In what respect golden rule is different from steady state growth rate?

The difference between the two lines is consumption; the golden rule capital stock is the k that maximizes consumption. Mathematically, this is where the slope of the production function (MPK) is equal to the slope of the depreciation line (δ). at steady state.

Who is Rostow theory?

Rostow’s theory can be classified as “top-down,” or one that emphasizes a trickle-down modernization effect from urban industry and western influence to develop a country as a whole. … Rostow assumes that all countries have an equal chance to develop, without regard to population size, natural resources, or location.

What is Rostow's take off theory?

According to Rostow, “Take-off is an industrial revolution, tied directly to radical changes in methods of production, having their decisive consequences over a relatively short period of time.” It is also called ‘a great watershed in the life of modern societies. ‘

Who has given the big push theory?

The originator of this theory was Paul Rosenstein-Rodan in 1943. Further contributions were made later on by Murphy, Shleifer and Robert W. Vishny in 1989.

What are the obstacles and constraints to Harrod Domar model?

The foremost drawback of these growth models is that they are based on unrealistic and unscientific assumptions. ADVERTISEMENTS: They have assumed the key determinants such as propensity to save and capital output ratio remains constant. But in reality, they are likely to change over a long period.