- In the second of two articles on long‐term world growth, we present a set of stylised scenarios for world growth in the next decade. Our baseline forecast, which sees growth edging down, is compared to scenarios based on ‘lost decades’ in China and India, lower productivity and investment growth and a bigger drag from excess debt. The more likely of these scenarios could cut world growth by around 0.5 percentage points per year, rising to a 1.5 percentage point cut for the most extreme scenario.
- Our baseline forecast assumes productivity and investment grow at a similar pace in the next decade to the past ten years. But there are downside risks to productivity growth, especially in Emerging Markets (EMs). And with investment in China and in commodity exporters slowing, our investment forecast relies on a significant rebound in the major economies.
- Demographic factors are a significant downside risk to our forecast. The negative impact of demographic changes on growth in Japan since the 1990s was not generally foreseen. This risk exists in the US and Europe but also in emerging Asia, a particular concern given that the latter region accounted for over 50% of world growth in 2000–14.
- Growth in commodity‐exporting economies could undershoot our current predictions. Historical evidence suggests a danger that the drop in commodity prices could extend for several more years. Even with zero real growth in commodity prices, aggregate GDP growth in the main commodity exporters might only be around 2.5% per year.
- Another risk area is debt. International evidence suggests debt ratios above certain thresholds slow growth. We find that countries accounting for 44% and 31% of world GDP respectively exceed these estimated public and corporate debt thresholds. But the share is lower, and has dropped, for household debt, thanks to deleveraging in the G7.
- ? The China‐commodity nexus has been at the heart of the global upturn in trade and industry. It could directly and indirectly account for as much as 70% of the recovery since mid‐2016, based on our analysis. We think this nexus will continue to support world growth in the near term, but the global upturn is vulnerable to moderating Chinese growth and slippage in commodity prices.
- ? China has directly accounted for around a third of the upturn in world trade, similar to the contribution of G7 countries. But adding in indirect effects, China's influence is likely to have been much more significant. Stronger Chinese demand has contributed to an improvement in the trade performance of its Asian trading partners, commodity exporters and other advanced economies.
- ? Using a model simulation that introduces positive shocks to imports in “greater China” and to commodity prices (based on the scale we have seen since mid‐2016), our top‐end estimate for China's contribution to the upturn in world trade is around 70%.
- ? The simulation points to especially strong improvements in output and exports for economies such as South Korea, Japan, Malaysia and some commodity exporters. This broadly matches the pattern of performance seen over recent months, though commodity exporters' performance has been quite mixed.
- ? G7 investment growth is likely to have played only a modest role in the recent global upturn. But Japan is an exception, while upgrades to investment forecasts for South Korea, Taiwan and Hong Kong have also been large.
- ? A 1% rise in commodity prices could raise commodity exporters' investment by 0.3–0.6%, based on our analysis. As a result, there could be additional improvement in commodity exporters' investment this year, supporting world growth. However, with our forecasts suggesting that commodity prices are set to slip further over the coming quarters, this boost could prove short‐lived.
Some scholars have proposed that economies grow by upgrading the commodities they produce and export. Product space theory holds that the export structure is determined by a country’s factor endowment and technological level, proposing the revealed comparative advantage (RCA) to analyze the specialization on commodities for countries. With the development of global trade, the network of multilateral trade relations has become increasingly hierarchical and complex. It would, therefore, be valuable to identify general patterns across countries of upgrading the commodity structure in the evolution of their participation in global trade. This paper shows that a typical pattern of change in the dominant types of foreign trade occurs when an economy has grown to a certain scale. With economic development, the advantages of high-technology commodities in trade gradually become more prominent.
相似文献- ? The dollar has tended to move in long swings over the last forty years, raising the risk that the recent decline could extend considerably further. This is not our base case, but risks do look skewed towards additional dollar weakness. Our modelling work suggests that a large further dollar slide would have significant effects on the pattern of world growth – the US and some emerging markets would gain, with other advanced economies the main losers.
- ? There have been several large multi‐year swings in the dollar over the last four decades. We identify seven such episodes since 1971 including three long declines averaging 31%, the last being in 2002‐08. Since 2017 the dollar has fallen 10%, implying a possible further considerable drop.
- ? Our dollar strength indicator, which covers a range of economic variables associated with dollar moves in the past, does not currently point to a re‐run of the dollar weakness of the 2000s. But we do expect some further near‐term dollar losses and risks to our baseline forecast look skewed to the downside, especially given the emergence of large twin deficits in the US.
- ? Should a further large dollar slump nevertheless occur, our modelling suggests large effects on the pattern of world growth. The main gainers would be commodity‐producing emerging markets (EM) benefitting from improved terms of trade, positive balance sheet and external liquidity effects and scope to ease local interest rates. Rising US yields would erode some of these gains in later years.
- ? The main initial losers would be advanced economies outside the US which would lose competitiveness. In the case of the Eurozone and Japan, undershoots of inflation targets would be likely. There could also be some other negative consequences such as stoking protectionism and creating financial bubbles in some EMs.
- This month sees our global GDP growth forecast for 2015 revised down to 2.7%, implying no improvement from 2014. At the start of the year, we expected world growth for 2015 at 2.9%.
- A key factor behind the slippage in our global forecast has been a softening of activity in the US. The balance of economic surprises (actual data versus expected) has deteriorated sharply in recent months. As a result, we now expect US growth at 2.7% this year, compared to 3.3% at the start of 2015.
- We are wary of reading too much into the most recent data, as the US and other advanced economies also went through ‘soft patches’ at the starts of both 2013 and 2014, but recovered. Also, the balance of economic surprises for the G10 is only moderately negative – and is strongly positive for the Eurozone.
- One area of concern is sluggish US consumption recently – despite lower oil prices. But with labour market conditions favourable and disposable income growing solidly, we expect this to prove a blip. And the evidence from advanced economies as a whole suggests lower oil prices have boosted consumers.
- There are nevertheless genuine drags on global growth. The strong dollar appears to be weighing on US exports and investment, and curbing profits. It is also damaging growth in some emerging markets through its negative impact on commodity prices and capital flows and via balance sheet effects (raising the burden of dollar‐denominated debt).
- Meanwhile, this month also sees a fresh downgrade to our forecast for China – GDP is now expected to rise 6.6% this year versus 6.8% a month ago. This reflects weakness in a number of key indicators and also the likely impact of a squeeze on local government finances from the property sector slump.
- With the US and China representing a third of global GDP, slower growth there will also tend to retard world trade growth. We continue to expect world GDP growth to reach 3% in 2016, but 2015 now looks like being another year of sub‐par global growth.
- ? Despite the mounting threat of more protectionist trade measures, we expect the impact on global growth and trade to be mild. Given this, and the still fairly solid underlying economic picture, we have left our global GDP growth forecasts for 2018 and 2019 unchanged at 3.2% and 3.0% respectively.
- ? Although economic data in Q1 painted a pretty solid picture, there are signs that the global expansion may lose momentum in Q2. Most notably, the global PMI fell sharply in March, more than offsetting the gains of the previous three quarters or so. Some of the decline may reflect an over‐reaction to recent trade threats and could be reversed in April and despite the drop, the surveys still point to strong growth. But the fall highlights the risk that lingering trade tensions could damage confidence and prompt firms and consumers to delay investment and major spending plans.
- ? On a more positive note, China's economic growth picked up markedly in early 2018, which could provide a fillip to global trade growth in the near term. Given the betterthan‐expected start to the year, we have made no change to our 2018 China GDP growth forecast (of 6.4%) despite the probable negative effects of trade measures.
- ? Meanwhile, most advanced economies remain in the late expansionary stage of the cycle. And those that show signs of slowing, such as the Eurozone, are doing so from multi‐year highs. While we have nudged down our 2018 Eurozone GDP growth forecast slightly to 2.2%, the pace is expected to remain well above trend. We judge the impact of US tariffs and counter‐measures on the US economy to be subdued and have lowered our GDP growth forecasts for 2018 and 2019 by just 0.1pp.
- ? For now, we see further solid growth for the world economy this year even in the environment of rising protectionism. While there is a risk that a further escalation of trade tensions could trigger a sharper slowdown in global GDP growth, we still see the risks of a full‐blown and damaging trade war as limited and the chances of protectionism leading to recessions as smaller still.
- ? A new indicator of exposure to the world trade slowdown points to Asian economies like Taiwan and Korea being most exposed, but also to significant vulnerability in Germany. Better insulated from the slowdown are the less open economies, such as the US, Brazil and India.
- ? Asian economies’ exposure is greater due to their generally high export orientations and strong trade integration with China – especially significant given the escalation of US‐China trade tensions. Likewise, Germany is highly export‐oriented but is also specialised in capital goods exports, which tend to weaken most in trade downturns.
- ? The indicator used is based on factors including trade openness, export specialisation in weakening sectors and exposure to spillovers from US‐China tariffs. It explains around 40% of the pattern of economic slowdown from 2017–2019 across a sample of key economies.
- ? This year advanced economies have enjoyed a rare positive supply surprise: output is higher than expected and inflation is lower. The initial China‐related boost not only proved to be a great antidote to secularly weak global demand, but it has also engendered unexpected global momentum and a benign inflation response. As a result, 2016–17 resembles a mini‐reprise of the “nice” 1990s, a non‐inflationary, consistently expansionary decade.
- ? The global momentum has been propelled by a strong international trade multiplier. This has contributed to strength in several advanced economies, particularly the Eurozone. We expect global growth in 2018 to be bolstered by US fiscal stimulus as the impulse from China fades.
- ? It will remain “nice” in 2018, albeit in the context of weak secular trend growth. We expect the benign output‐inflation trade‐off to continue. Several of the factors that are underpinning low inflation and unemployment as well as weak wage growth are likely to be present for some time.
- ? Further evidence that the global economy ended last year on a high note is consistent with our view that world GDP growth in 2018 will be around 3.2%, a little better than the likely rise of 3% in 2017 and the best annual outturn since 2011.
- ? The global economy has entered 2018 with plenty of momentum. In December, the global composite PMI continued to trend upwards, rising to its highest level of 2017. This was primarily down to developments in the manufacturing sector, with several emerging markets recording especially strong gains.
- ? While the strength of the manufacturing PMI bodes well for global trade, other timely trade indicators, particularly from Asia, have been less positive. On balance, though, we have nudged up our forecast for world trade growth iwn 2018 to 4.8%. But this would still be a slowdown after last year's estimated rise of 6%.
- ? This partly reflects the change in the drivers of GDP growth from 2017. We still expect a modest slowdown in China, triggering a sharper drop‐off in import growth there. Eurozone GDP growth is also likely to slow slightly, to 2.2%, which is still well above our estimate of potential growth. By contrast, we have nudged up our US GDP growth forecast for this year to 2.8% – 0.5pp higher than the probable 2017 outturn – as looser fiscal policy will not be fully offset by tighter monetary policy. The recent rise in commodity prices, further dollar weakness and still‐strong global trade growth all bode well for prospects in many emerging markets.
- ? Some commentators have questioned the durability of the global economic expansion, reflecting the long period of uninterrupted GDP growth and concerns that a financial market slowdown could eventually impinge on growth. But economic expansions do not die of old age. And while equity markets look expensive on many metrics, we expect strong earnings growth to push equity prices higher over the coming months. Meanwhile, although various geopolitical risks remain, more generally economic uncertainty has diminished.