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Ashika Monthly Insight Flip July 2016

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JULY <strong>2016</strong><br />

ECONOMY REVIEW<br />

Source: IMD<br />

estimates are for 106% of the long-period average (LPA),<br />

the monsoon is expected to have spread across whole of<br />

India by end of June. Considering that ~50% of the<br />

country’s workforce depends on agriculture for a living<br />

and over half of India’s farmland lacks assured irrigation,<br />

monsoon is of paramount importance. Besides, the food<br />

inflation has failed to be tamed over the last two years<br />

mainly on account of two failed monsoons barring the<br />

issues with hoarders or middlemen. Thus, clearly the<br />

latest set of rainfall figures raises obvious doubts<br />

regarding the authenticity and the effectiveness of the<br />

forecasting methods or set of results drawn by IMD and<br />

as well as Skymet.<br />

There are various analyses available to understand the<br />

success of the IMD’s accuracy in forecasting over the<br />

years. Unfortunately, most of them have come up with<br />

unpleasant results and the accuracy of forecasting have<br />

been kept wanting. In fact, an analysis titled “What to<br />

make of the latest IMD monsoon forecast?” was carried out<br />

by The Hindu based on 10 years of forecast data. The<br />

analysis showed that the IMD’s initial April forecast got the<br />

‘rainfall range’ wrong 70% of the times. This essentially<br />

means that in 7 out of 10 years, the actual rainfall has<br />

been outside ± 5% error margin range. On the other hand,<br />

the revised June-<strong>July</strong> forecast, often regarded as a more<br />

accurate monsoon forecast got the ‘rainfall range’ wrong<br />

60% of the times. Besides, at times when IMD predicts for<br />

‘below normal’ monsoon, it could often turn out to be<br />

‘deficient’ or above normal to devastating floods. IMD<br />

classifies its rainfall forecast into five ‘ranges’ based on the<br />

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