Is poor household saving the cause of New Zealand's high current account deficit?

Bryce Wilkinson and Trinh Le
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Bryce Wilkinson: Capital Economics

No 2008/1, NZIER Working Paper from New Zealand Institute of Economic Research

Abstract: The current account deficit in the balance of payments has frequently surfaced in public policy debate, with many commentators asserting that low household saving is a major cause of these deficits. Yet, in standard macroeconomic theory, both the current account balance and household saving are endogenous, so one can not cause the other. For any country in any given period, they may be positively or negatively correlated, or uncorrelated, depending on what causative factors were dominant at the time. Moreover, the current account balance is identical to the difference between national saving and investment. There is no general reason to expect it to move in lock step with the level of household saving. Consistently, pooled cross-country and time-series data indicate that simple correlations between the two variables are randomly scattered around zero. In the absence of proper analysis, unsubstantiated assertions about the role of household saving mislead public debate and invite the adoption of welfare-reducing policies, which may not even improve the balance of payments. The case for diverting attention from policies to lift economic growth to policies to improve the balance of payments seems to be not so much unproven as unexamined.

Keywords: balance of payments; household savings rate; deficit; New Zealand (search for similar items in EconPapers)
JEL-codes: E21 F32 (search for similar items in EconPapers)
Pages: 12 pages
Date: 2008-01-28
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Citations: View citations in EconPapers (4)

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