Income grants are argued to be vastly more efficient in extending basic needs to the poor than subsidizing supplies whose effectiveness in poverty alleviation is diluted by the non-poor who enjoy the same subsidized prices. With cars and other appliances, the wealthiest 20% of Egypt uses about 93% of the country's fuel subsidies. In some countries, fuel subsidies are a larger part of the budget than health and education. A 2008 study concluded that the money spent on in-kind transfers in India in a year could lift all India's poor out of poverty for that year if transferred directly. The primary obstacle argued against direct cash transfers is the impractically for poor countries of such large and direct transfers. In practice, payments determined by complex iris scanning are used by war-torn Democratic Republic of Congo and Afghanistan, while India is phasing out its fuel subsidies in favor of direct transfers. Additionally, in aid models, the famine relief model increasingly used by aid groups calls for giving cash or cash vouchers to the hungry to pay local farmers instead of buying food from donor countries, often required by law, as it wastes money on transport costs.