Reserve Bank Of NZ Discussion Papers (12 Jul 2007)

Reserve Bank Of New Zealand Discussion Papers

The following Discussion Papers have been released by the Reserve Bank:

DP2007/10
Understanding the New Zealand current account: A structural approach
Anella Munro and Rishab Sethi
Abstract In this paper we use a small open economy model to identify the causal factors that drive New Zealand's current account. The model features nonseparable preferences, habit in consumption, imperfect capital mobility, permanent productivity shocks, fiscal shocks and two foreign shocks to explore features that are important in understanding the dynamics of the current account. The results suggest that permanent technology shocks and world cost of capital shocks account for the bulk of variation in the current account at short horizons; at longer horizons, external valuation shocks (reflecting terms of trade and exchange rate developments) account for most of the variance. Habit in consumption and a debt-sensitive risk premium are features that improve overall model fit as measured by posterior odds ratios. These features, and the contribution of foreign and permanent technology shocks, help to explain why the one shock present value model of the current account fails to appropriately characterise the dynamics of the New Zealand current account, as discussed in Munro and Sethi (2006).
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DP2007/11
Credit constraints and housing markets in New Zealand
Andrew Coleman
Abstract: The paper develops an overlapping generations model incorporating a realistic depiction of the credit constraints facing home buyers to explain why home ownerships rates have declined in New Zealand since 1990 despite a significant relaxation of credit constraints. The model focuses attention on the role of property investors in the property market, and suggests changes in credit constraints mainly affect the tenure decisions of individual households, but not the aggregate level of house prices. The model suggests the decline in real interest rates is likely to be the cause of the rise in house prices and the decline in home ownership rates since 1990.
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ENDS

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