Question1of 5
1

Data on prices are gathered in a variety of ways. Which of the following modes of price collection are currently adopted by DOS?

(i) Prices are extracted from online retail stores
(ii) Prices are obtained from a friend through a call
(iii) Prices are obtained through requisition forms emailed to the establishments
(iv) Electronic prices are obtained from major supermarket chains

2

Which of the following are not examples of ‘Administrative data’?

(i) Price of chicken rice collected from price board at a coffeeshop
(ii) Prices of dresses obtained from a few online fashion stores
(iii) Survey returns from selected establishments
(iv) Data on electricity prices paid by households from the Energy Market Authority

3 Which of the following involves the use of web crawlers or Application Programming Interface (API) to automate the collection of prices?
4 With digital transformation, handheld devices have been integrated in field surveys to ___________.
5

In compiling the CPI, the Singapore Department of Statistics accounts for changes in quantity or packaging size, where possible, by adjusting the price data of the items tracked in the CPI basket on the basis of a fixed unit of measurement (e.g., price per 100g). The resulting price movement is reflected in the CPI as a pure price change.

Assuming in Month T, the packaging size for a bag of apples was reduced from 4 apples to 3 apples but was still selling at the same price of $1.50, as in Month T-1.

What is the resulting price movement reflected in the CPI for this item in Month T over Month T - 1?
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