2002 £m		2001 £m		2000 £m
Purchase of short-term investments and payments into short-term deposits over 3 months	(7,601	)	(1,344	)	(3,178	)
Sale of short-term investments and withdrawals from short-term deposits over 3 months	4,695		1,765		3,850
Net movement of short-term investments and short-term deposits under 3 months not repayable on demand	1,042		(901	)	564
Net cash inflow (outflow) from management of liquid resources	(1,864	)	(480	)	1,236

Movements in all short-term investments and deposits not repayable on demand are reported under the heading of management of liquid resources.