Explanation:

• Statement 1 is correct: Minimum Support Price impacts the price of rice in India. The higher MSP would also dent Indian exporters’ competitiveness in the global markets, which have turned to be a buyers’ market.
• Statement 2 is correct: The government typically buys more than a third of the country's rice output at a fixed price, which also has a direct impact on prices paid by traders. With this price rise, the exports will become expensive.
• Statement 3 is correct: Stockpiling usually occurs at times of an actual or expected shortage of a product or in anticipation of a price rise.
• Statement 4 is correct: The impact of the consumer subsidy is to lower prices for consumers but to increase the price received by producers.

Hence option 4th is correct.