Which of the following assumptions is/are valid? 1. Deflation strategies can be used to make manufacturers appear to be doing better than they actually are. 2. When input and output prices are both deflated against a single input price, it is referred to as 'double deflation'. Select the answer using the code given below.

The correct answer is A) 1 only.

Statement 1 is valid: Deflation strategies, specifically the practice of 'single deflation', can lead to the overestimation of manufacturing growth, making manufacturers appear to be doing better than they actually are. In national income accounting, if nominal value added is deflated using only a single price index, it fails to account for divergent trends in input costs. For example, if input prices (like global crude oil or raw materials) fall sharply but output prices remain stable, single deflation will artificially inflate real Gross Value Added (GVA). This methodological issue was a central point in economic debates regarding the overestimation of India's manufacturing GDP growth post-2011, where plummeting commodity prices coupled with single deflation strategies exaggerated real economic performance.

Statement 2 is invalid: 'Double deflation' does not mean deflating both input and output prices against a single input price. According to the United Nations System of National Accounts (SNA), double deflation is a method where real value added is calculated by deflating gross output and intermediate inputs separately using two distinct price indices (an output price index for gross output, and an input price index for intermediate inputs). Subtracting the real inputs from the real output yields a much more accurate measure of real value added, neutralizing the mathematical distortions caused by single deflation.

Takeaway/Mnemonic: Remember Double = Different. Double deflation uses two different indices (input and output) to accurately gauge real value added, whereas single deflation uses just one, which can artificially inflate growth numbers during commodity price crashes.