IMF Working Papers describe research in progress by the author(s) and are published to elicit
comments and to encourage debate. The views expressed in IMF Working Papers are those of the
author(s) and do not necessarily represent the views of the IMF, its Executive Board, or IMF management.
IMF Working Papers describe research in progress by the author(s) and are published to elicit
comments and to encourage debate. The views expressed in IMF Working Papers are those of the
author(s) and do not necessarily represent the views of the IMF, its Executive Board, or IMF management.
Hong Kong SAR's government faces the dual challenges of volatile revenue and medium term spending pressures arising from a rapidly aging population. Age-related spending pressures raise long-run sustainability concerns, while revenue volatility creates risks to service provision, possibly entailing sudden tax changes, or even requiring new borrowing. After describing the risks associated with aging, the paper uses value at risk techniques to measure the value of the unanticipated risks posed by volatile revenue. The paper also describes the self-insurance value of Hong Kong SAR's traditionally high fiscal savings (reserves), and the impact alternate policy choices could have on revenue volatility.