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Ricardian Theory of Rent/Ricardian Model of Rent:

 

Definition:

 

The theory of economic rent was first propounded by the English Classical Economist David Ricardo (1773 -1823). David Ricardo in his book. "Principles of Political Economy and Taxation", defined rent as that:

 

"Portion of the produce of the earth which is paid to a landlord on account of the original and indestructible powers of the soil, Ricardo in his theory of rent has emphasized that rent is a reward for the services of land which is fixed in supply. Secondly, it arises due to original qualities of land which are indestructible". (The original indestructible powers of the soil include natural soil, fertility, mineral deposits, climatic conditions etc., etc.).

 

Assumptions:

 

(i) Rent Under Extensive Cultivation.

 

(ii) Rent Under Intensive Cultivation.

 

Explanation and Example of Ricardian Theory of Rent:

 

Rent Under Extensive Cultivation:

 

According to Ricardo:

 

"All the units of land are not of the same grade. They differ in fertility and location. The application of the same amount of labor, capital and other cooperating resources give rise to difference in productivity. This difference in productivity or the surplus which arises on the superior units of land over the inferior units is an economic rent".

 

The Ricardian theory of rent is explained by taking an example:

 

Schedule:

 

Grades of Land Yield in Quintals per Acre Price per Quintal ($) Total Return ($)
A 50 50 2500
B 35 60 2100
C 20 70 1400
D 15 80 1200

 

In the above schedule, we assume that there are four grades of land A, B, C and D in an uninhabited country. A grade land is more fertile than B grade land. B grade land is superior to C grade and so is C grade to D grade land.

 

Following Ricardo let us assume, a batch of settlers migrate to this island. They begin cultivating A grade land which yield 50 quintals of wheat per acre. Let us suppose now that the population of that country increases and A grade land is not sufficient to meet the food requirements of the growing population. The inhabitants of that country shall then have to bring under cultivation B grade land. With the identical amounts of labor and capital. B grade land yields 35 quintals of wheat per acre. A surplus of 15 quintal of wheat {50 - 35 = 15) which arises with the same outlay on A grade land is an economic rent. B grade land being a marginal land gives no rent. When owing to the pressure of growing population and a rise in demand for food, C grade land is brought under cultivation, it yields only 20 quintals of wheat with the identical amount of labor and capital. With the cultivation of C grade land, the economic rent of A grade land is now raised to 30 quintals per acre: (50 - 20 = 30) and that of B grade land 15 quintals of wheat per acre. C grade land is a no rent land as it is cultivated at the margin.

 

If the expenses of production on A grade of land yielding 50 quintals of wheat are $2500 and the market price of total yield on A grade land is also $2500, then A grade land only will be brought under cultivation. A grade land here is the marginal land. If the price of agricultural produce increases ($60 per quintal) and the expenses of producing wheat on B grade land are equal to the market price of the produce i.e.. $2100, then B grade of land which was hitherto neglected would be brought under cultivation. B grade land then becomes the marginal land. Similarly, D grade land will be the marginal land when it compensates the cultivator by giving a yield of $1200, and enjoys no surplus over cost. Marginal land is thus not fixed. It varies with the changes in the price of agricultural produce. If population increase still further and the demand for food increases, then D grade land will be brought under plough. The surplus or economic rent of A grade land will go up to 35 quintals (50 - 15 = 35), of B grade 20 quintals, of C grade 5 quintals. D grade land being the marginal land yields no rent.

 

Diagram:

 

The Ricardian model is now explained with the help of a diagram:

 

 

In the figure (19.1), the various grades of land in the descending order of fertility are plotted on OX axis and yield per acre is shown on OY axis. The cultivated area due to pressure of population and the rising demand for food is pushed to D grade of land which is a marginal land. The owner of A grade of land gets a surplus, or economic rent of 35 quintals of wheat, of B, 20 quintals and on C grade, the rent is 5 quintals of wheat.

 

Rent Under Intensive Cultivation:

 

The theory of rent which has been discussed above applies to Intensive margin of cultivation. The surplus or economic rent also arises to the land cultivated intensively. This occurs due to the operation of the famous law of diminishing returns.

 

When the land is cultivated intensively, the application of additional doses of labor and capital brings in less and less of yield. The dose whose cost just equates the value of marginal return is regarded marginal or no rent dose. The rent arises on all the infra-marginal doses.

 

For example, the application of first unit of labor and capital to a plot of land yields 25 quintals of wheat, the 2nd dose gives 15 quintals of wheat and with third it drops down to 10 quintals only, the farmer applies only 3 doses of labor and capital as the total outlay on the third does equals its return. The rent when measured from the third or marginal dose is 15 quintal       (25 - 10 = 15) on first dose and 5 quintal on second dose (15 -10 = 5). The third dose is a no rent dose.

 

Criticism on Ricardian Theory of Rent:

 

(i) No Original and Indestructible Power: Ricardo is of the opinion that rent is paid due to the original and indestructible powers of the soil. It is pointed out that there are no powers of the soil which are indestructible. As we go on cultivating a piece of land time and again, its fertility gradually diminishes. To this criticism, it is replied that there are properties of the soil, such as climate situation, sunshine, humidity, soil composition, etc., which are infect original and indestructible.

 

(ii) Wrong Assumption of 'No Rent Land': Ricardo assumes the existence of no-rent land. A land which just meets the cost of cultivation. The modern economists are of the opinion that if a plot of land can be put to several uses, then it does yield rent.

 

(iii) Rent Enters Into Price: According to Ricardo, rent does not enter into price. The modern economists are of the opinion that it does eater into price.

 

(iv) Wrong Assumption of Perfect Competition: Ricardo is of the opinion that perfect competition prevails between the landlord and the tenant, but in the actual world, it is imperfect competition which is the order of the day.

 

(v) All Lands are Equally Fertile: Ricardo assumes that rent arises due to difference in the fertility of the soil. But the modern economists assert that if all lands are equally fertile, even then the rent will arise. The rent can arise: (a) if the produce is not sufficient to meet the requirements of the people, and (b) due the operation of the law of diminishing returns.

 

(vi) Historically Wrong: Carey and Roscher have criticized the orders of cultivation assumed by Ricardo. They are of the opinion that it is not necessary that A grade land will be cultivated first, even if it lies far away from the city. To this it is replied by Walker that when Ricardo uses the words 'best land' he means by it the land which is superior both in fertility and in situation.

 

(vii) Neglect of Scarcity Principle: It is pointed out by the modem economists that the concept of rent can be easily explained with the help of the scarcity principle and so there is no need to have a separate theory of rent.

Relevant Articles:

» Definition and Meaning of Rent
» Ricardian Theory of Rent/Ricardian Model of Rent
» Modern Theory of Rent
» Rent and Price Theory
» Concept of Quasi Rent
» Economic Progress and Rent
 

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