Conservative estimates have put the number of expected protesters at 40,000 but with trade union backing, numbers could be far higher. The Bank, Fund and government delegations are changing their plans in response.
Questions arise as governments are asked for replenishment of funds.
Some European governments argue that this would deplete IDA's resources. NGOs press for more openings. The review will assess what has been achieved in the two years since this approach to structural adjustment was announced. Argentina is seen as a crucial political and economic test of free-market reforms. But doubts remain about its implementation.