(16)Whereas market disturbances could be caused by branches of investment firms established in Member States other than their Member States of origin which offer levels of cover higher than those offered by investment firms authorized in their host Member States; whereas it is not appropriate that the level or scope of cover offered by compensation schemes should become an instrument of competition; whereas it is therefore necessary, at least during an initial period, to stipulate that neither the level nor the scope of cover offered by a home Member State's scheme to investors at branches located in another Member State should exceed the maximum level or scope offered by the corresponding scheme in the host Member State; whereas any market disturbances should be reviewed at an early date, on the basis of the experience acquired and in the light of developments in the financial sector;