By Chetan Ahya

Economics: The Role of FX in the Deleveraging Cycle

Since the credit crisis, the rise in debt-fuelled investment in China has been taking place against a background of slowing additions to the workforce and also structurally weaker export growth, hence lacking the productivity dynamic. Reflecting the excess capacity issues in the industrial sector, producer prices have been in deflation for the past 32 months while consumer price trends have also been subdued. These disinflationary pressures have resulted in slower nominal GDP growth and higher real rates, posing challenges for policymakers to manage debt dynamics. Against this backdrop, a crucial debate has been raised as to whether policy-makers in China should engineer a sustained depreciation in RMB in order to aid deleveraging efforts.

In our view, the experience of the U.S. deleveraging cycle during which USD held relatively stable (as opposed to a sustained depreciation trend) as the U.S. economy successfully achieved a stabilisation in its debt dynamics suggests otherwise. To be sure, a weaker currency can play a supportive role in the management of debt dynamics, particularly if most of the external debt of the economy is denominated in local currency; however, we argue that the management of real rates versus real GDP growth is more critical.

In addition, we see challenges for policy-makers in engineering a sustained depreciation. Real rate differentials are supportive of renminbi (RMB) and, as per our forecasts, real rate differentials are unlikely to narrow significantly in the coming 12-18 months.

With the onset of disinflation pushing up real rates and policymakers' ongoing attempts to reduce misallocation of financial resources, fixed asset investment growth has been weak. If disinflationary pressures were to persist, high real rates would weigh on domestic demand growth and, in this scenario, current account surpluses, as represented by the savings investment gap, would likely increase. This would make it even more difficult to engineer a meaningful, sustained depreciation in the trade-weighted exchange rate.

FX Strategy: Putting RMB Under the Microscope

Given the strong USD backdrop, China's monetary conditions have been tightening due to tight credit lending, high real interest rates and a strong real effective exchange rate. China will focus on reforms and continue to promote the critical transition of its growth model away from exports and investments towards domestic consumption. Furthermore, a weaker RMB could lead to significant outflow risks and consequent hedging demand in FX additionally resulting in an adverse monetary impact on the domestic economy. This would also not align with China's ambitious plans for RMB internationalisation.

Therefore, we do not expect China to use RMB as a policy tool to support growth. The currency is likely to remain stable in the years ahead with a mild appreciation bias, we believe. Potential costs of weakening RMB could outweigh the potential benefits, in our view. Having said this, if China's macro outlook and flow dynamics remain stable alongside external macro volatility staying relatively low, we see a likelihood of China perhaps increasing RMB's two-way volatility in 1H (especially in 1Q when the trade balance and current account balance are seasonably weak).

Global FX Implications of RMB Policy

The impact on the global economy from the path the People's Bank of China (PBoC) takes cannot be emphasised enough. With global disinflation very much at the fore of macroeconomic concerns, a policy adopting the weakening of RMB, allowing China to export deflation abroad, will only add to existing issues. While China's policymakers look to provide some support to domestic growth to eschew a disorderly rebalancing, using FX weakness as the policy tool could have substantial negative implications for disinflationary currencies, especially within Asia, we argue. SGD, KRW and THB would be most vulnerable, given large trade linkages with China and already low inflation.

In addition, China joining the global trade of deflation would increase pressure on other central banks to take further dovish action in order to support dangerously low inflation expectations. In the case that the ECB takes further action to counter the PBOC's RMB weakening policy and weakens EUR, we also see an indirect negative impact on other 'lowflation' currencies against USD. As such, this outcome could be potentially negative for EUR, CHF, SEK and JPY within G10, and ILS, PLN and HUF within EM.

We also evaluate the broad global FX implications of three separate scenarios: I) Our base case in which the PBOC stays neutral on RMB and no active changes are made to FX reserves; II) The PBOC fixes USD/CNY higher to weaken the currency while keeping FX reserves stable; and III) The PBOC buys USD reserves to weaken RMB in order to support domestic growth and inflation, similar to 1Q this year.

In summary, our base case remains that the PBOC will not use FX as a policy tool to buttress domestic growth. In the event that it does, we see potentially negative implications for disinflationary currencies, as well as commodity currencies, depending on the policy adopted on FX reserves.

This is the executive summary of a longer Economics and Strategy Insights report written by Morgan Stanley economist Chetan Ahya and his fellow economists Derrick Kam and Jenny Zheng, and fixed income strategists Kewei Yang and Vandit D. Shah.

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