Read the passage and answer the following questions:
Critics of disinvestment make two points. One, PSUs would erode in value as long as they continued under government ownership; the longer the government hung on to them, the greater would be the loss to the exchequer. Two, prospective investors would pay more if PSUs were privatized instead of being disinvested. As minister for disinvestment, Arun Shourie attempted privatization of PSUs. He became a hero to many votaries of reform. The mere promise of privatization had caused an appreciation in the value of listed PSUs by 100,000 crores. But the critics have been proved resoundingly wrong. PSUs have appreciated in value over time, and beyond all expectations. So have public sector banks. The government is not permitted to sell its equity in PSBs under the present statutes but that does not make a difference in conceptual terms.