Wealth and Welfare Definition of Economics

The first definition of economics was given by Adam Smith, a citizen of Scotland in 1776 A.D. Adam smith has separated economics from other social sciences and defined economics for the first time. So, he is recognized as the father of economics and leader of economics.The wealth definition of economics has been further explained using following properties. -study of Wealth -Secondary Place to Mankind -.Source of Wealth -Study of Economic-Man

Summary

The first definition of economics was given by Adam Smith, a citizen of Scotland in 1776 A.D. Adam smith has separated economics from other social sciences and defined economics for the first time. So, he is recognized as the father of economics and leader of economics.The wealth definition of economics has been further explained using following properties. -study of Wealth -Secondary Place to Mankind -.Source of Wealth -Study of Economic-Man

Things to Remember

  1. Adam Smith has published his famous book entitled  ‘An Inquiry into the Nature and Causes of Wealth of Nation’ in 1776 A.D.
  2. The wealth definition of economics has been further explained using: Source of Wealth and Study of Economic-man
  3. The wealth definition of economics given by Adam Smith was strongly criticized on several grounds by famous economists by famous economists like Carlyle, Ruskin and Marshall.

The criticisms of Adam Smith’s definition are:

  1. Narrow definition
  2. Over emphasis on Wealth
  3. Single Source of wealth
  4. Unrealistic Concept of Economic-Man

The criticism of Welfare definition are:

  1. Classificatory in Nature
  2. Narrow or Limited Scope
  3.  Lack of Clear Concept about Welfare
  4. Excludes Human Science
  5. It involves value judgment

 

 

MCQs

No MCQs found.

Subjective Questions

Q1:

Solve: 4x2 = 16x 

 


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>4x<sup>2</sup> = 16x</p> <p>or,4x<sup>2</sup>- 16x = 0</p> <p>or, 4x ( x - 4) = 0</p> <p>Either 4x = 0</p> <p>&there4; x = 0</p> <p></p> <p>Or, x - 4 = 0</p> <p>&there4; x = 4</p>

Q2:

Solve: \( \frac{x^2+3}{2}\) = 6 

 


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>\( \frac{x^2+3}{2}\) = 6</p> <p>or, \( x^ 2 + 3 \) = 12</p> <p>or, \( x^2\) = 9</p> <p>or, \((x)^2\) = (&plusmn;3)<sup>2</sup></p> <p>or, x =&plusmn;3</p>

Q3:

When a number is added to its square, it becomes 20, find the number. 

 


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the number be x. Hence, the other number is \( x^2\)</p> <p>According to question,</p> <p>x + \( x^2\) = 20</p> <p>or,x + \( x^2\) - 20 = 0</p> <p>or, \(x^2\) + 5x - 4x - 20 = 0</p> <p>or, x ( x + 5) - 4(x + 5) = 0</p> <p>or, (x - 4) (x + 5) = 0</p> <p>Either, x - 4 = 0</p> <p>&there4; x = 4</p> <p><br>Or, x + 5 = 0</p> <p>&there4; x = -5</p>

Q4:

If the sum of squares of three consecutive numbers  is 194, find the numbers.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the three numbers be x, x + 1 and x + 2</p> <p>Then, According to question,</p> <p></p> <p>\(x ^2\) + \( (x+1)^2\) + \( (x+2)^2\) = 194</p> <p>or, \(x ^2\) + \(x ^2\) + 2x + 1 + \(x ^2\) + 4x + 4 = 194</p> <p>or, 3\(x ^2\) + 6x - 189 = 0</p> <p>or, 3(\(x ^2\) + 2x - 63) = 0</p> <p>or, (\(x ^2\) + 2x - 63) = 0</p> <p>or, \( x^2\) + 9x - 7x - 63 = 0</p> <p>or, x (x + 9) - 7( x+9) = 0</p> <p>or, ( x - 7) ( x + 9) = 0</p> <p>Either,</p> <p>x - 7 = 0</p> <p>&there4; x = 7</p> <p></p> <p>Or, x + 9 = 0</p> <p>&there4; x = -9.</p> <p></p> <p>Therefore, the required numbers are 7, 7 + 1 , 7 + 2 = 7, 8, 9</p> <p>Or, -9, -9 + 1, -9 + 2 = -9, -8, -7</p> <p></p>

Q5:

The product of two consecutive odd numbers is 143. Find the numbers.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, one of the odd number be x . Then, its consecutive odd number is ( x + 2)</p> <p></p> <p>According to question,</p> <p>x ( x + 2) = 143</p> <p>or, \( x^2\) + 2x = 143</p> <p>or, \( x ^ 2\) + 2x - 143 = 0</p> <p>or, \( x ^2\) + 13x - 11x - 143 = 0</p> <p>or, x ( x + 13) - 11( x + 13) = 0</p> <p>or, ( x + 13) ( x - 11) = 0</p> <p>Either,</p> <p>x - 11 = 0</p> <p>or, x = 11</p> <p></p> <p>Or, x + 13 =0</p> <p>or, x = -13</p> <p>Hence, the required number is 11 and 11 + 2 = 13</p>

Q6:

The product of two consecutive even numbers is 168. Find the numbers.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, one of the evennumber be x . Then, its consecutive evennumber is ( x + 2)</p> <p></p> <p>According to question,</p> <p>x ( x + 2) = 168</p> <p>or, \( x^2\) + 2x = 168</p> <p>or, \( x ^ 2\) + 2x - 168 = 0</p> <p>or, \( x ^2\) + 14x - 12x - 168 = 0</p> <p>or, x ( x + 14) - 12( x + 14) = 0</p> <p>or, ( x + 14) ( x - 12) = 0</p> <p>Either,</p> <p>x - 12 = 0</p> <p>or, x = 12</p> <p></p> <p>Or, x + 14 = 0</p> <p>or, x = -14</p> <p>Hence, the required number is 12 and 11 + 2 = 14</p>

Q7:

The product of two consecutive numbers is 56. Find the numbers.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, one of the number be x . Then, its consecutive number is ( x + 1)</p> <p></p> <p>According to question,</p> <p>x ( x + 1) =56</p> <p>or, \( x^2\) + x =56</p> <p>or, \( x ^ 2\) + x - 56= 0</p> <p>or, \( x ^2\) + 8x - 7x - 56= 0</p> <p>or, x ( x + 8) - 7( x + 8) = 0</p> <p>or, ( x + 8) ( x - 7) = 0</p> <p>Either,</p> <p>x - 7= 0</p> <p>or, x =7</p> <p></p> <p>Or, x + 8=0</p> <p>or, x = -8</p> <p>Hence, the required number is 7 and 7 + 1=8</p>

Q8:

If the difference of squares of two consecutive odd number is 24, find the numbers.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the odd number be x and its consecutive odd number be ( x + 2).</p> <p>According to question,</p> <p>\( (x + 2) ^2\) - \( x^2\) = 24</p> <p>or,\( x^2\) + 4x + 4 -\( x^2\) = 24</p> <p>or, 4x = 24 - 4</p> <p>or, 4x = 20</p> <p>or, x = \( \frac {20}{4}\)</p> <p>or, x = 5</p> <p>Hence, the required numbers are 5 and 5 + 2 = 7</p> <p></p>

Q9:

If 4 times the square of a number is equal to 16 times the number, find the number.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the number be x.</p> <p>Then, According to question,</p> <p>4\( x ^ 2\) = 16x</p> <p>or 4 \( x ^2\) - 16x = 0</p> <p>or, 4x (x - 4) = 0</p> <p>Either, 4x = 0</p> <p>&there4; x = 0</p> <p></p> <p>Or, x - 4 = 0</p> <p>&there4; x = 4.,</p>

Q10:

If 9 is subtracted from the square of a number, the result is 40. Find the number.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the number be x.</p> <p>Then, According to question,</p> <p>\( x ^ 2\) - 9 = 40</p> <p>or,\( x ^ 2\) = 40 + 9</p> <p>or,\( x ^ 2\) = 49</p> <p>or, \( (x)^2\) = \( (&plusmn;7) ^ 2\)</p> <p>&there4;x =&plusmn;7</p>

Q11:

Find the whole number which decreased by 10 is equal to 39 times the reciprocal of the number.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let the whole number be x</p>
<p>Then, According to question,</p>
<p>&nbsp;</p>
<p>x - 10 = 39&times; \( \frac {1}{x}\)</p>
<p>or, \( x ^ 2 \) - 10x = 39</p>
<p>or,\( x ^ 2 \) - 10x - 39 = 0</p>
<p>or,\( x ^ 2 \) - 13x + 3x - 39 = 0</p>
<p>or, x ( x - 13) + 3(x - 13) = 0</p>
<p>( x + 3) ( x - 13) = 0</p>
<p>Either x - 13 = 0</p>
<p>&there4; x = 13</p>
<p>Or, x + 3 = 0</p>
<p>&there4; x = - 3</p>
<p>&nbsp;</p>
<p>Hence, the required whole number is 13.</p>

Q12:

If 5 is subtracted from half of the square of a natural number, the result is 45. Find the number. 


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the natural number be x</p>
<p>Then,</p>
<p>According to quesiton,</p>
<p>\( \frac {x ^2}{2}\) - 5 = 45</p>
<p>or \( \frac {x ^2}{2}\) = 45 + 5</p>
<p>or,\( \frac {x ^2}{2}\)= 50</p>
<p>or, \( x ^ 2\) = 100</p>
<p>or, \( ( x)^2\) = \( (10)^2\) [ Only (+10) is taken because the required number is a natural number]</p>
<p>or, x = 10</p>
<p>Hence, the requierd number is 10.</p>
<p>&nbsp;</p>

Q13:

Divide 12 into two parts so that their product is 32.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the first number is x then the second number becomes (12 - x)</p> <p>According to question,</p> <p>x ( 12 - x) = 32</p> <p>or, -\( x ^ 2\) + 12x - 32 = 0</p> <p>or, \( x ^ 2\) - 12x + 32= 0</p> <p>or, \( x ^ 2\) - 8x - 4x + 32 = 0</p> <p>or, x ( x - 8) - 4( x - 8 ) = 0</p> <p>or, ( x - 4) ( x - 8) = 0</p> <p>Either, x - 4 = 0</p> <p>&there4; x = 4</p> <p></p> <p>Or, x - 8 = 0</p> <p>&there4; x = 8</p> <p></p> <p>If first number is 4, the other number is 12 - 4 = 8</p> <p>If first number is 8, the second number is 12 - 8 = 4</p> <p>Hence, the required numbers are 8,4 or 4,8</p>

Q14:

The difference of the ages of two brothers is 7 years and the product of their ages is 260. Find their ages.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the age of smaller brother = x years</p> <p>Then, the age of elder brother = ( x + 7) years</p> <p>According to question,</p> <p></p> <p>x ( x + 7) = 260</p> <p>or, \( x ^ 2 \) + 7x = 260</p> <p>or,\( x ^ 2 \) + 7x - 260 = 0</p> <p>or,\( x ^ 2 \) + 20x - 13x - 260 = 0</p> <p>or, x ( x + 20) - 13 ( x + 20) = 0</p> <p>or, (x+ 20) ( x - 13) = 0</p> <p>Either, x + 20 = 0</p> <p>or, x = - 20 ( Not possible)</p> <p></p> <p>Or,</p> <p>x - 13 = 0</p> <p>or, x = 13</p> <p>Hence, the ages of the brothers are 13 and ( 13 + 7) = 20 years</p>

Q15:

The difference of the ages of two sisters is 7 years and the product of their ages is 78. Find their ages.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the age of one sister = x years</p> <p>Then, the age of other sister= yyears</p> <p>From first condition, x - y = 7</p> <p>or, x = y + 7 -------(i)</p> <p>From second condition, xy = 78 -------------(ii)</p> <p>Putting the value of x in equation (ii)</p> <p>(y + 7) y = 78</p> <p>or, \( y ^ 2\) + 7y = 78</p> <p>or, \( y ^ 2\) + 7y - 78 = 0</p> <p>or, \( y ^ 2\) + 13y - 6y - 78 = 0</p> <p>or, y ( y + 13) -6( y + 13) = 0</p> <p>or, ( y - 6) ( y + 13) = 0</p> <p>Either</p> <p>y + 13 = 0</p> <p>or, y = -13 (Not possible)</p> <p></p> <p>Or,</p> <p>y - 6 = 0</p> <p>or, y = 6</p> <p></p> <p>Putting the value of y in equation (i)</p> <p>x = 6 + 7 = 13</p> <p>Hence, the ages of two sisters are 13 years and 6 years.</p> <p></p> <p></p>

Q16:

The present ages of father and son are 35 years and 12 years respectively. Find, how many years ago, the product of their ages was 210.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, x years ago, the product of their ages was 210.</p> <p>Age of father x years ago = ( 35 - x) years</p> <p>Age of son x years ago = (12 - x ) years</p> <p></p> <p>According to quesiton,</p> <p>( 35 - x) ( 12 - x) = 210</p> <p>or, 420 - 12x - 35x + \( x ^ 2\) = 210</p> <p>or, \( x ^ 2\) - 47x + 420 - 210 = 0</p> <p>or, \( x ^ 2\) - 47x + 210 = 0</p> <p>or, \( x ^2\) - 42x - 5x + 210 = 0</p> <p>or, x ( x - 42) - 5( x - 42) = 0</p> <p>or, ( x - 5) ( x - 42) = 0</p> <p>Either, x - 5 = 0</p> <p>&there4; x = 5</p> <p></p> <p>Or, x - 42 = 0</p> <p>&there4; x = 42 ( Not possible as their current ages are less than 42 years)</p> <p></p> <p>Hence, 5 years ago the product of their ages was 210.</p>

Q17:

The present ages of father and son are 42 years and 16 years respectively. Find, how many years ago, the product of their ages was 192.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, x years ago, the product of their ages was192.</p> <p>Age of father x years ago = ( 42- x) years</p> <p>Age of son x years ago = (16 - x ) years</p> <p></p> <p>According to quesiton,</p> <p>( 42- x) ( 16 - x) =192</p> <p>or, 672- 42x - 16x + \( x ^ 2\) =192</p> <p>or, \( x ^ 2\) - 58x + 672 - 192= 0</p> <p>or, \( x ^ 2\) -58x + 480= 0</p> <p>or, \( x ^2\) - 48x - 10x + 480 = 0</p> <p>or, x ( x - 48) - 10( x - 48) = 0</p> <p>or, ( x - 10) ( x - 48) = 0</p> <p>Either, x - 10= 0</p> <p>&there4; x =10</p> <p></p> <p>Or, x - 48 = 0</p> <p>&there4; x = 48 ( Not possible as their current ages are less than 48 years)</p> <p></p> <p>Hence, 10years ago the product of their ages was192.</p>

Q18:

The present ages of elder and younger brother are 13 years and 7 years respectively. FInd, in how  many years will the product of their ages will be 280.

 


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, after x years the product of their ages will be 280 .</p> <p>Age of elder brother after x years = ( 13 + x) years</p> <p>Age of younger brother after x years = ( 7 + x) years</p> <p></p> <p>According to question,</p> <p>( 13 + x) ( 7 + x) = 280</p> <p>or, 91 + 13x + 7x + \( x ^ 2\) = 280</p> <p>or, \( x ^ 2\) + 20x +91x - 189 = 0</p> <p>or,\( x ^ 2\) + 27x - 7x - 189 = 0</p> <p>or, x ( x + 27) - 7( x + 27 ) = 0</p> <p>or, ( x + 27) ( x - 7) = 0</p> <p>Either, x -7= 0</p> <p>&there4; x =7</p> <p></p> <p>Or, x +27 = 0</p> <p>&there4; x = -27( Not possible)</p> <p></p> <p>Hence, after 7 years,the product of their ageswill be 280.</p>

Q19:

6 years ago,  father's age was 6 times the age of his son. The product of their present ages is 300. What are their present ages?


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, present age of father = x years amd present age of son = y years</p> <p></p> <p>From first condition,</p> <p>x - 6 = 6( y - 6)</p> <p>or, x - 6 = 6y - 36</p> <p>or, x = 6y - 36 + 6</p> <p>or, x = 6y - 30 -----(i)</p> <p></p> <p>From second condition, xy = 300 ----------(ii)</p> <p>Putting the value of x from (i) in (ii)</p> <p>( 6y - 30) y = 300</p> <p>or, 6\( y ^ 2\) - 30y - 300= 0</p> <p>or, 6( \(y ^ 2\) - 5y - 50) = 0</p> <p>or,\(y ^ 2\) - 5y - 50 = 0</p> <p>or, \( y ^ 2\) - 10y + 5y - 50 = 0</p> <p>or, y ( y - 10) + 5 ( y - 10) = 0</p> <p>or, ( y + 5) ( y - 10) = 0</p> <p>Either, y +5 = 0</p> <p>or, y = -5 ( Impossible)</p> <p></p> <p>Or, y - 10 = 0</p> <p>or, y = 10</p> <p>Putting the value of y in equation (i)</p> <p>x = 6 x 10 - 30 = 30</p> <p>Hence, the present ages of father and son are 30 years and 10 years respectively.</p>

Q20:

The product of present ages of two sisters is 150. 5 years ago, the elder was twice as old as the younger sister. Find their present ages.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the age of elder sister = x years and the age of younger sister = y years</p> <p>From first condition, xy = 150</p> <p>or, y = \( \frac {150}{x}\) -----(i)</p> <p></p> <p>From second condition,</p> <p>x - 5 = 2 ( y - 5)</p> <p>or, x - 5 = 2y - 10</p> <p>or, x = 2y - 10 + 5</p> <p>or, x = 2y - 5 -----------(ii)</p> <p></p> <p>Putting the value of y from equation (i) in equation (ii)</p> <p>x = 2\( \frac {150}{x}\) - 5</p> <p>or, x = \( \frac { 300 - 5x}{x}\)</p> <p>or, \( x ^ 2\) = 300 - 5x</p> <p>or, \( x ^ 2 \) + 5x - 300 = 0</p> <p>or,\( x ^ 2 \) + 20x - 15x - 300 = 0</p> <p>or, x ( x + 20) - 15 ( x + 20) = 0</p> <p>or, ( x - 15) ( x + 20) = 0</p> <p>Either x - 15 = 0</p> <p>&there4; x = 15</p> <p></p> <p>Or, x + 20 = 0</p> <p>&there4; x = - 20 ( Not possible)</p> <p></p> <p>Putting the value of x in euqaiton (ii)</p> <p>15 = 2y - 5</p> <p>or, 2y = 15 + 5</p> <p>or, 2y = 20</p> <p>or, y = \( \frac {20}{2}\)</p> <p>or, y = 10</p> <p>Hence, the present ages of elder and younger sisters are 15 and 10 years respectively.</p> <p></p> <p></p> <p></p>

Q21:

The sum of two numbers is 21 and the sum of their squares is 261. Find the numbers.

 


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the two numbers are x and y</p> <p>From first condition, x + y = 21</p> <p>or, y = 21 - x ----------(i)</p> <p></p> <p>From second condition, \( x^ 2\) + \( y ^ 2\) = 261</p> <p>or, \( x ^ 2\) + \(( 21 - x)^2\) = 261</p> <p>or, 2\( x ^ 2\) - 42x + 441 = 261</p> <p>or, 2\( x ^ 2\) - 42x + 180 = 0</p> <p>or, 2(\( x ^ 2\) - 21x + 90) = 0</p> <p>or,(\( x ^ 2\) - 21x + 90) = 0</p> <p>or, \( x ^ 2\) - 15x - 6x + 90 = 0</p> <p>or, x ( x - 15) - 6 ( x - 15) = 0</p> <p>or, (x - 6) ( x - 15) = 0</p> <p>Either, x - 6 = 0</p> <p>&there4; x = 6</p> <p></p> <p>Or, x - 15 = 0</p> <p>&there4; x = 15</p> <p></p> <p>When, x = 15, y = 21- 5 = 6</p> <p>When x = 6, y = 21 - 6 = 15</p> <p></p> <p>Hence, the required numbers are 6,15 or 15,6.</p>

Q22:

A two digit number is such that the product of the digits is 35. When 18 is added to the number,the digits are interchanged, find the number.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Let, the two digit number is 10x + y where y is one's place and x is ten's place</p> <p>From first conditon, xy = 35 ------(i)</p> <p>From second condition, 10x + y + 18 = 10y + x</p> <p>or, 10x - x + y - 10y = -18</p> <p>or, 9x - 9y = - 18</p> <p>or 9 ( x - y) = -18</p> <p>or, ( x - y) = \( \frac {-18}{9}\)</p> <p>or, x - y = -2</p> <p>or, x = y - 2 --------------------(ii)</p> <p>Putting the value of x in equation (ii) from (i)</p> <p>(y - 2) y = 35</p> <p>or, \( y ^ 2\) - 2y = 35</p> <p>or, \( y ^ 2\) - 7y + 5y -35 = 0</p> <p>or, y ( y - 7) + 5( y - 7) = 0</p> <p>or, ( y + 5) ( y - 7 )= 0</p> <p>Either,</p> <p>y - 7 = 0</p> <p>&there4; y = 7</p> <p></p> <p>Or, y + 5 = 0</p> <p>&there4; y = - 5 ( Not possible) </p> <p></p> <p>Putting the value of y in equation (ii)</p> <p>x = 7 - 2 = 5</p> <p>Hence, the requierd number is 10x + y = 10 x 5 + 7 = 57</p> <p></p> <p></p>

Q23: If the 2 times the square of a number is equal to the 6 times the number,find the numbers.
Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: 0,3

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Wealth and Welfare Definition of Economics

Wealth and Welfare Definition of Economics

Wealth Definition (Classical Definition): Adam Smith

Book of Adam Smith (www.goodreads.com)
Fig: Book of Adam Smith (www.goodreads.com)

The first definition of economics was given by Adam Smith, in 1776 A.D. a citizenship of Scotland. Adam smith has separated economics from other social science and defined economics for the first time. So, he is known as the father of economics.

Adam Smith has published his famous book entitled as "An Inquiry into the Nature and Causes of Wealth of Nations" in 1776 A.D. This book is popularly known as "Wealth of Nations". In the view of Adam, economics is the study of activities of people in the production of wealth. The definition of economics given by Adam Smith was supported by various classical economists like J.B Say, F.A Walker, J.S Mill, etc.

According to J.B Say, "Economics is the science that treats of Wealth".

The wealth definition of economics has been further explained using following properties (i.e. it has following features):

1. Study of Wealth

According to the definition of Adam Smith, economics is only concerned with wealth earning activities. Every human living in the society needs wealth to fulfill their basic requirements. All the human beings living in the society are concerned to earn more and more wealth. It means economic deals with production, distribution, exchange and consumption of wealth.

2. Secondary Place to Mankind

The wealth centered definition of economic has given first priority to wealth and secondary priority to mankind. Adam Smith assumed that mankind is for wealth but wealth cannot be for mankind.

3. Source of Wealth

According to the definition of Adam Smith, salary or wages earned by labourers is only the source to earn the wealth. Adam Smith has suggested that the active labourers can earn high amount of wages through the division of labour. It increases the productivity and distribution of the goods. In this way, a wealth of Nation can be increased.

4. Study of Economic-Man

Adam Smith claimed that economic studies the behavior of that person whose main objective is to earn more and more money by hook or crook. Human of such nature, in the word of Adam Smith, is "Economic-man".

Criticisms of Wealth Definition

The wealth definition of economics given by Adam Smith was strongly criticized on several grounds by a famous economist like Carlyle, Ruskin, and Marshall. They criticized this definition by saying "Science of bread and butter". However, the major criticisms of Adam Smiths definition are briefly explained below:

1. Narrow Definition

The wealth centered definition of economic has given stress on only those activities which are related to wealth earning activities. This definition excludes those human beings who are not related to wealth earning activities. So, this definition could not study the activity of those people who are engaged in social service. It justifies that wealth definition has a narrow definition.

2. Over emphasis on Wealth

The wealth definition has over emphasized on wealth rather than human beings. Adam Smith extremely emphasized wealth by giving primary importance to wealth and secondary importance to mankind. The critics pointed out that wealth is for human beings but human beings are not for wealth. Therefore, human life cannot be sacrificed for wealth rather wealth should be used for the betterment of mankind.

3. Single Source of wealth

Adam Smith said that wages earned by laborer are only one source of wealth of nation. But, the critics pointed out that the natural resources, human resources, capital resources and physical resources are also the sources of wealth of nations. All these resources together can be utilized to earn maximum wealth by the nation.

4. Unrealistic Concept of Economic-Man

Adam Smith assumed that every human being who wants to earn money by hook or crook is known as Economic-man. The critics pointed out that almost all human beings have their own qualities of human life such as a feeling of life, experience, self-esteem, respect, trust, etc. which provide greater satisfaction rather than wealth in their life. So, the pure economic man does not exist in real life.

Welfare Definition (Neo-classical definition): Alfred Marshall

Alfred Marshall (prezi.com)
Fig: Alfred Marshall (Source: www.prezi.com)

The second definition of economics was given by the leader of Neo-classical economists, Alfred Marshall (1842 A.D -1924 A.D). He was renowned British scholar and Professor of economics at Cambridge University. Alfred Marshall has published the book "Principles of Economics" in 1890 A.D and defined economics in term of material welfare.

According to Alfred Marshall, "Economics is a study of mankind in an ordinary business of life." It inquires how a man earns income and how he uses it. Thus, it is on the one side the study of wealth and on the other, the most important part is the study of mankind. Thus, Marshall shifted the focus of economics from wealth aspect of Adam Smith to welfare aspect. No doubt, he considered as an important part of a human. But, he has given primary importance to mankind and secondary importance to wealth justifying wealth should be used for the welfare of mankind. The Marshallian definition has been supported by A.C Pigou and Edwin Cannan.

According to Pigou, "Economics studies the part of social welfare that can be brought directly or indirectly into relation to the measuring rod of money". The Marshallian definition as a science of material welfare has been further explained below:

1. Primary importance to Mankind

According to Alfred Marshall, economics is the study of wealth in relation to wealth. He explains how a man in the ordinary business earns wealth and utilizes to achieve maximum satisfaction. He further added that wealth is for the betterment of mankind but mankind is not for wealth. He also suggested that primary importance should be given to mankind and the secondary importance to wealth.

2. Study of Ordinary human beings

The welfare definition given by Alfred Marshall has given highly stress on ordinary human beings rather than economic man of Adam Smith. In the view of Alfred Marshall, ordinary human beings are those who get involved not only in accumulating more and more wealth but also try to experience love, sympathy, goodwill, respect, honor, prestige and co-operation.

3. Study of Material Welfare

Alfred Marshall has highly focused on material welfare i.e. satisfaction or utility obtained from physical goods or materials goods rather than human welfare. The satisfaction derived by a consumer by consumption of basic goods (food, cloth, shelter, etc) or luxury goods (T.V, Mobile, Laptops, Computers, etc) or habitual goods (Alcohol, Cigarette, etc) is called material welfare.

4. Social Science

According to Alfred Marshall, economics studies those human lives in the society. It does not study the isolated person not belonging to the society such as beggars, sages, hermits, monks, saints, etc. As economics studies the economic behavior of people living in the society; it is called social science.

5. Normative science

According to Alfred Marshall, economics is a normative science. Marshall said that wealth should be utilized for human welfare.

Criticisms of Welfare definition

Professor Lionel Robbins has criticized the Marshalls definition of economics and introduced the modern definition economics in 1932 A.D. The major criticisms made by Robbins are as follows:

1. Classificatory in Nature

Alfred Marshall classified human activities into material and non-material welfare, ordinary and other business. However, he could not clarify the differences between these terms. Therefore, in the view of Robbins, this definition is classificatory in nature rather than analytical in nature.

2. Narrow or Limited Scope

Alfred Marshall stressed that economics studies just about material welfare obtained from materials activities carried out by human beings. On the other hand, critics pointed out that there is some other non-material welfare which fulfills human desires and needs that come under the subject matters of economics.

3. Lack of Clear Concept about Welfare

Marshall has highly focused on material welfare rather than human welfare in his definition. Lionel Robbins pointed out that the concept of welfare differs according to time, place and circumstances. A smoker and alcohol lover considers smoking and alcohol and promotes his welfare. On the other hand, same commodities such as harmful drugs, tobacco and alcohol are harmful to other non-smokers because they cannot promote their welfare in any form.

4. Excludes Human Science

According to Alfred Marshall, economics studies about those people who are living in society. But the critics of this definition argued that economics should study total human beings whether they are actively participating in social functions or they are isolated from society.

5. It involves value judgments

The word "welfare" in Marshall Definition involves value judgments and relates "Economics" to the branch of ethics. But economics should be neutral regarding moral judgments and about what is good and what is bad.

Reference:

Adhikari, Ramesh Prasad, Economics-XI, Asmita Pustak Prakashan, Kathmandu

Kanel, Navaraj et.al., Principles of Economics-XI, Buddha Prakashan, Kathmandu

Kharel, Khom Raj et.al., Economics In English Medium-XI, Sukunda Pustak Bhawan, Kathmandu

Lesson

Nature of Economics

Subject

Economics

Grade

Grade 11

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