National Institute Economic Review

The production of this forecast is supported by the Institute’s Corporate Members: Abbey plc, Bank of England, Barclays Bank plc, Ernst and Young LLP, GlaxoSmithKline plc, Marks and Spencer plc, Morgan Stanley Dean Witter (Europe) Ltd, Morley Fund Management, The National Grid Company plc, Nomura Research Institute Europe Ltd, Rio Tinto plc, Standard Chartered Bank plc, Unilever plc and Watson Wyatt LLP.

This paper describes a fully behavioural microsimulation model that has recently been developed at the National Institute for considering responses to changes in pension policy of household savings and labour supply. The model generates household decisions regarding labour/leisure, and consumption/savings by solving a dynamic programming problem over the simulated lifetime. This analytical framework incorporates a degree of complexity that is usually omitted from econometric analyses that are common in the literature.

This paper reports estimates of the potential welfare effects of hypothetical increases in the petrol excise tax in New Zealand. Equivalent variations, for a range of household types and total expenditure levels, are obtained along with distributional measures. Household demand responses are modelled using the Linear Expenditure System, where parameters vary by total expenditure level and household type. The effects on inequality were found to be negligible, but the marginal excess burdens typically ranged between 35 and 55 cents per dollar of additional revenue.

We assess the performance of France, Germany and the United Kingdom over the period 1997–2002. Gross and net output per hour worked are considerably lower in the UK than in France and Germany. GDP in France and the UK have grown at the same rates over the period although real national income in the UK has grown considerably faster than in France. Seen from the supply side, French growth is substantially attributable to growth in total factor productivity while in the UK factor inputs are more important. There is, nevertheless, a concern that, at the margin, UK growth may be depreciation-intensive and therefore of poor quality. Germany’s growth has been slow because productive inputs have grown only slowly and its weak performance is probably structural rather than cyclical. There does seem to be room for substantial increases in labour input in both France and Germany to be achieved through reform to labour market conditions such as tax rates on low paid workers.

We investigate declining output volatility in the G7 since 1970 in a panel context, seeking to explain the causes of the decline. We show that there is a significant role for both net financial wealth and trade openness as well as inflation volatility, even though previous studies have ignored the fact that it may be endogenous and its role therefore spurious. However, its importance clearly varies over time and across countries, and it appears less important as an explanation of declining volatility in the US than it does in the UK. Changes in openness appear to be at least as important in explaining the decline in US output volatility.