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प्रश्न
Write note on Fisher’s price index number
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उत्तर
Fisher defined a weighted index number as the geometric mean of Laspeyre’s index number and Paasche’s Index number
`"P"_01^"F" = sqrt((sum"p"_1"q"_0 xx sum"p"_1"q"_1)/(sum"p"_0"q"_0 xx sum"p"_0"q"_1)) xx 100`
The Fisher-price index number is also known as the “ideal” price index number.
This requires more data than the other two index numbers and as a result, may often be impracticable.
But this is a good index number because it satisfies both the time-reversal test and factor reversal test.
i.e `"P"_01^"F" xx "P"_10^"F"` = 1
And
`"P"_01^"F" xx "Q"_01^"F" = (sum "p"_1"q"_1)/(sum"p"_0"q"_0)`
APPEARS IN
संबंधित प्रश्न
Explain the features of index numbers.
Index numbers that measure changes in the level of output or physical volume of production in the economy −
Device that measures changes in an economic variable or a group of variables over a period of time –
Assertion (A): Index numbers are statistical devices.
Reasoning (R): Index numbers measure only changes in the price level over a period of time.
Identify & explain the concept from the given illustration.
Bombay Stock Exchange has developed “Sensex” as a stock market index for reflecting the share prices of listed companies.
Mention the classification of Index Number
Define Laspeyre’s price index number
Calculate by a suitable method, the index number of price from the following data:
| Commodity | 2002 | 2012 | ||
| Price | Quantity | Price | Quantity | |
| A | 10 | 20 | 16 | 10 |
| B | 12 | 34 | 18 | 42 |
| C | 15 | 30 | 20 | 26 |
An Enquiry was made into the budgets of the middle class families in a city gave the following information.
| Expenditure | Food | Rent | Clothing | Fuel | Rice |
| Price(2010) | 150 | 50 | 100 | 20 | 60 |
| Price(2011) | 174 | 60 | 125 | 25 | 90 |
| Weights | 35 | 15 | 20 | 10 | 20 |
What changes in the cost of living have taken place in the middle class families of a city?
Read the given passage and answer the questions:
|
Index Number is a technique of measuring changes in a variable or group of related variables with reference to time, geographical location and other characteristics. Index Number is very useful for economists, farmers, traders, government, educationalists and trade union leaders for planning and implementing the plans according to their sector. The scope of index number is not limited to only one subject but it extends to many subjects such as Economics, Educational science, Psychology, History, Sociology, Geography etc. While framing index number its objective must be determined. To attain the objective the information is collected in various ways and this information is used for comparing two different time periods. For this purpose, the base year’s index is assumed as 100 and accordingly the value of the current year is calculated. Laspeyre, Paasche and Fisher have suggested different methods for constructing index numbers. |
- Explain the meaning of Index Number.
- To whom the Index Number is useful?
- Express your opinion about the given passage.
