Publication: Forecasting Industrial Commodity Prices: Literature Review and a Model Suite
Loading...
Date
2023-11-28
ISSN
Published
2023-11-28
Author(s)
Editor(s)
Abstract
Almost two-thirds of emerging market and developing economies rely heavily on resource sectors for economic activity, fiscal and export revenues. In these economies, economic planning requires sound baseline projections for the global prices of the commodities they rely on and a sense of the risks around such baseline projections. This paper presents a model suite to prepare well-founded forecasts for the global prices for oil and six industrial metals (aluminum, copper, lead, nickel, tin, and zinc). The model suite adapts six approaches used in the literature and tests their forecast performance. Broadly speaking, futures prices or bivariate correlations performed well at short horizons, and consensus forecasts and a large-scale macroeconometric model performed well at long horizons. The strength of Bayesian vector autoregression models lies in generating forecast scenarios. The sizable forecast error bands generated by the model suite highlight the need for policy makers to engage in careful contingency planning for higher or lower prices.
Link to Data Set
Citation
“Arroyo-Marioli, Francisco; Khadan, Jeetendra; Ohnsorge, Franziska; Yamazaki, Takefumi. 2023. Forecasting Industrial Commodity Prices: Literature Review and a Model Suite. Policy Research Working Paper; 10611. © World Bank. http://hdl.handle.net/10986/40657 License: CC BY 3.0 IGO.”
Associated URLs
Associated content
Other publications in this report series
Publication Geopolitics and the World Trading System(Washington, DC: World Bank, 2024-12-23)Until the beginning of this century, the GATT/WTO system worked. Economic research provided a compelling explanation. It showed that if governments maximize the well-being of their own countries broadly defined, GATT/WTO principles would facilitate mutually beneficial cooperation over their trade policy choices. Now heightened geopolitical rivalry seems to have undermined the WTO. A simple transposition of the previous rationalization suggests that geopolitics and trade cooperation are not compatible. The paper shows that this is only true if rivalry eclipses any consideration of own-country well-being. In all other circumstances, there are gains from trade cooperation even with geopolitics. Furthermore, the WTO’s relevance is in question only if it adheres too rigidly to its existing rules and norms. Through measured adaptation to the geopolitical imperative, the WTO can continue to thrive as a forum for multilateral trade cooperation in the age of geopolitics.Publication Chinese Imports and Industrialization in Africa(Washington, DC: World Bank, 2025-05-12)The rise of China in the global economy has been linked with negative impacts on employment across many high- and middle-income countries. However, evidence for African countries is limited. This paper investigates the causal relationship between Chinese imports and manufacturing employment in Ethiopia. Imports may harm domestic firms through a revenue effect (lower market shares) or benefit them, indirectly if competition spurs innovation or directly through access to better quality or cheaper inputs. The analysis shows that a one unit increase in import penetration leads to a 15.2 percent increase in industry employment. The inputs effect is disentangled from the other two effects by decomposing total Chinese imports by their end-use category using input-output tables. The evidence shows that imported intermediate inputs are driving the employment gains. The findings are consistent with the idea that employment gains are a result of productivity gains and increases in capacity utilization. These employment gains appear to benefit large firms and labor-intensive industries disproportionately.Publication VAT Exemptions, Embedded Tax, and Unintended Consequences(Washington, DC: World Bank, 2025-05-15)The value-added tax (VAT) has proved to be a highly effective tool at raising revenue in developed and developing countries alike. However, the effective operation of the VAT breaks down in the presence of exemptions. Unlike zero rates, exemptions deny input tax credits, thereby increasing production costs and resulting in VAT being embedded within the prices of goods and services. This paper develops a VAT model based on input-output table and household budget survey data for 29 European countries to examine the effects of VAT exemptions on final prices and to assess the merits of their use. Simulation results show that exemptions suffer from the same targeting problems as reduced VAT rates, but, in addition, they are non-transparent and have unpredictable and counterproductive indirect effects. These effects are in addition to the well-known distortionary impact of exemptions on production decisions, and their creation of incentives to self-supply. The paper concludes that the use of exemptions should be limited to addressing pragmatic concerns, such as the disproportionate compliance costs of small businesses and the practical difficulty in taxing margin-based financial services.Publication Disentangling the Key Economic Channels through Which Infrastructure Affects Jobs(Washington, DC: World Bank, 2025-04-03)This paper takes stock of the literature on infrastructure and jobs published since the early 2000s, using a conceptual framework to identify the key channels through which different types of infrastructure impact jobs. Where relevant, it highlights the different approaches and findings in the cases of energy, digital, and transport infrastructure. Overall, the literature review provides strong evidence of infrastructure’s positive impact on employment, particularly for women. In the case of electricity, this impact arises from freeing time that would otherwise be spent on household tasks. Similarly, digital infrastructure, particularly mobile phone coverage, has demonstrated positive labor market effects, often driven by private sector investments rather than large public expenditures, which are typically required for other large-scale infrastructure projects. The evidence on structural transformation is also positive, with some notable exceptions, such as studies that find no significant impact on structural transformation in rural India in the cases of electricity and roads. Even with better market connections, remote areas may continue to lack economic opportunities, due to the absence of agglomeration economies and complementary inputs such as human capital. Accordingly, reducing transport costs alone may not be sufficient to drive economic transformation in rural areas. The spatial dimension of transformation is particularly relevant for transport, both internationally—by enhancing trade integration—and within countries, where economic development tends to drive firms and jobs toward urban centers, benefitting from economies scale and network effects. Turning to organizational transformation, evidence on skill bias in developing countries is more mixed than in developed countries and may vary considerably by context. Further research, especially on the possible reasons explaining the differences between developed and developing economies, is needed.Publication Economic Consequences of Trade and Global Value Chain Integration(World Bank, Washington, DC, 2025-04-04)This paper introduces a new approach to measuring Global Value Chains (GVC), crucial for informed policy-making. It features a tripartite classification (backward, forward, and two-sided) covering trade and production data. The findings indicate that traditional trade-based GVC metrics significantly underestimate global GVC activity, especially in sectors like services and upstream manufacturing, and overstate risks in early trade liberalization stages. Additionally, conventional backward-forward classifications over-estimate backward linkages. The paper further applies these measures empirically to assess how GVC participation mediates the impact of demand shocks on domestic output, highlighting both the exposure and stabilizing potential of GVC integration. These new measures are comprehensively available on the World Bank’s WITS Platform, providing a key resource for GVC analysis.
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication Fiscal Policy Procyclicality and Volatility in Commodity-Exporting Emerging and Developing Economies(Washington, DC: World Bank, 2025-01-14)Over the past few decades, fiscal policy has been about 30 percent more procyclical and about 40 percent more volatile in commodity-exporting emerging markets and developing economies (EMDEs) than in other EMDEs. Both procyclicality and volatility of fiscal policy—which share some underlying drivers—hurt economic growth because they amplify business cycles. Structural policies, including exchange rate flexibility and the easing of restrictions on international financial transactions, can help reduce both fiscal procyclicality and fiscal volatility. By adopting average advanced economy policies on exchange rate regimes, restrictions on cross-border financial flows, and the use of fiscal rules, commodity-exporting EMDEs can increase their gross domestic product per capita growth by about 1 percentage point every four to five years through the reduction in fiscal policy volatility. Such policies should be supported by sustainable, well-designed, and stability-oriented fiscal institutions that can help build buffers during commodity price booms to prepare for any subsequent slump in prices. A strong commitment to fiscal discipline is critical for these institutions to be effective in achieving their objectives.Publication Global Commodity Markets : Review and Price Forecast(World Bank, Washington, DC, 2009-09-01)A companion to Global Development Finance 2009. The slowing of global growth, which preceded the financial crisis by several months, prompted commodity prices to start falling in mid-2008. The eruption of the full-blown crisis and the rapid drop-off in economic activity since September of that year accelerated this process markedly. Demand for most commodities (notably, in high-income industries and in China) slowed or declined, particularly for oil and metals. By December 2008, crude oil prices had dropped to $41 a barrel, down more than 70 percent from the July peaks, while non-energy prices, including food,had declined by nearly 40 percent. Since December, prices have firmed, with crude oil prices up to $69 on average in June 2009, and prices for foods and metals up 22 and 13 percent, respectively.Publication Fiscal Procyclicality in Commodity Exporting Countries(World Bank, Washington, DC, 2023-05-03)A large literature has documented that fiscal policy is procyclical in emerging markets and developing economies and acyclical/countercyclical in advanced economies. This paper analyzes fiscal procyclicality in commodity-exporting countries. It first shows that the degree of fiscal procyclicality is twice as high in commodity exporters than in non-commodity exporters. Further, while fiscal procyclicality has been falling in commodity exporters over the past 15 years, it is still pervasive and has fallen slower than in non-commodity exporting countries. In addition to testing the main theories behind fiscal procyclicality in commodity exporters and the role of institutional variables, the paper makes two novel contributions. First, based on the idea of fiscal procyclicality as a “when it rains, it pours” phenomenon (that is, contractionary fiscal policy amplifies the effects of a fall in commodity prices), the paper shows that, on average, government spending amplifies the business cycle by 21 percent of the initial drop in output following a fall in commodity prices. Put differently, the “pours” component accounts for 17 percent of the total fall in output. Second, the paper estimates the welfare costs of fiscal procyclicality at 2.6 percent of the costs associated with the regular business cycle in commodity exporters.Publication The Great Plunge in Oil Prices(World Bank, Washington, DC, 2015-03)This note combines and distills existing and new research to inform discussion on the topical policy issue of oil prices. Following four years of relative stability at around $105 per barrel (bbl), oil prices have declined sharply since June 2014 and are expected to remain low for a considerable period of time. The drop in prices likely marks the end of the commodity supercycle that began in the early 2000s. Since the past episodes of such sharp declines coincided with substantial fluctuations in activity and inflation, the causes and consequences of and policy responses to the recent plunge in oil prices have led to intensive debates. This paper addresses four questions at the center of these debates, with particular emphasis on emerging market and developing economies: 1) How does the recent decline in oil prices compare with previous episodes? 2) What are the causes of the sharp drop and what is the outlook for oil price? 3) What are the economic and financial consequences? 4) What are the main policy implications? The decline in oil prices will lead to significant real income shifts from oil exporters to oil importers, likely resulting in a net positive effect for global activity over the medium term. However, several factors could counteract the global growth and inflation implications of the lower oil prices. These include weak global demand and limited scope for additional monetary policy easing in many countries. The disinflationary implications of falling oil prices may be muted by sharp adjustments in currencies and effects of taxes, subsidies, and regulations on prices. Regarding fiscal policy, the loss in oil revenues for exporters will strain public finances, while savings among oil importers could help rebuild fiscal space. Lower oil prices also present a window of opportunity to implement structural reforms. These include, in particular, comprehensive and lasting reforms of fuel subsidies, as well as energy taxes more broadly.Publication The Role of Major Emerging Markets in Global Commodity Demand(World Bank, Washington, DC, 2018-06)Rapid growth among the major emerging markets over the past 20 years has boosted global demand for commodities. The seven largest emerging markets accounted for almost all the increase in global consumption of metals, and two-thirds of the increase in energy consumption over this period. As emerging market economies mature and shift towards less commodity-intensive activities, their demand for commodities may plateau. This paper estimates income elasticities of demand for a range of energy, metal and food commodities, and finds evidence of plateauing among several commodities. Looking ahead, as economies mature and GDP growth slows, growth in demand for commodities may also slow. Based on current population and GDP growth forecasts, this paper produces scenarios of potential growth in demand for commodities over the next decade. While global energy consumption growth may remain broadly steady, growth in global demand for metals and food could slow by one-third over the next decade. This would dampen global commodity prices. Despite an expected slowdown in its growth rate, China would likely remain the single largest consumer of many commodities. For the two-thirds of emerging market and developing economies that depend on raw materials for government and export revenues, these prospects reinforce the need for economic diversification and the strengthening of policy frameworks.
Users also downloaded
Showing related downloaded files
Publication Gold Investing Handbook for Asset Managers(Washington, DC: World Bank, 2024-02-28)Throughout history, gold has played a vital role as a financial asset in the global financial system. It has been prevalent as a currency in many civilizations, including Ancient Greece, Rome, and Egypt. In the modern era, gold continues to play a critical role in the global financial system, serving as a hedge against inflation, a safe haven asset, and a reserve asset for central banks. In recent years, gold has regained its importance as a financial asset, with many investors using it as a hedge against inflation and market volatility. In addition, central banks and other financial institutions continue to hold significant amounts of gold as part of their reserve assets. The increasing awareness of environmental, social, and governance (ESG) issues in the investment community has led to a growing interest in responsible sourcing and use of gold. Initiatives such as the LBMA’s Responsible Sourcing Program (RSP) and the World Gold Council’s Responsible Gold Mining Principles (RGMP) aim to promote sustainable and ethical practices in the gold mining industry. This report first discusses the credentials of gold as a strategic asset by analyzing its historical risk and return characteristics, its correlation with various asset classes, and the historical and future performance of several stylized institutional portfolios with varying allocations to gold. The later part of the report addresses practical aspects for reserve managers of investing into gold and discusses various gold buying practices; gold trading, storing, and accounting; and gold liquidity management strategies. ESG considerations for gold investments are covered in the final chapter.Publication Commodity Markets Outlook, April 2023: Lower Prices, Little Relief(World Bank, Washington, DC, 2023-04-27)Global commodity prices fell 14 percent in the first quarter of 2023, and by the end of March, they were roughly 30 percent below their June 2022 peak. The unwinding of prices reflects a combination of slowing economic activity, favorable winter weather, and a global reallocation of commodity trade flows. Commodity prices are expected to fall by 21 percent this year and remain mostly stable in 2024, although the outlook is subject to multiple risks in a highly uncertain environment. These risks include intensification of geopolitical tensions, the strength of demand from China following its post-COVID reopening, likely energy supply disruptions, and weather conditions, including the emerging El Niño. A Special Focus section evaluates the performance of several approaches used to forecast prices of seven industrial commodities. It finds that futures prices, which are widely used for price forecasts, often lead to large forecast errors. Time-series models based on multiple independent variables tend to outperform other model-based approaches as well as futures prices. Machine-learning techniques yield better forecasts than some of the traditional approaches. The analysis suggests that augmenting model-based forecasting approaches—by incorporating the dynamics of commodity prices over time and controlling for other economic factors—enhances forecast accuracy.Publication State and Trends of Carbon Pricing 2017(Washington, DC: World Bank, 2017-11)Reflecting the growing momentum for carbon pricing worldwide, the 2017 edition of the State and Trends of Carbon Pricing targets the wide audience of public and private stakeholders engaged in carbon pricing design and implementation. This report also provides critical input for negotiators involved in the implementation of the Paris Agreement, particularly for the meeting of the Conference of the Parties (COP} 23 to be held in Bonn in November 2017. As in the previous editions, the report provides an up-to-date overview of existing and emerging carbon pricing initiatives around the world, including national and subnational initiatives. Furthermore, it gives an overview of current corporate carbon pricing initiatives. Another key focus of the report is on the importance of an integrated approach to climate finance and climate markets, together with domestic policies. The analysis shows how such an integrated approach can be used to mobilize the scale of low-carbon investments needed to achieve the below 2°C temperature target and outlines a transition scenario and the possible role of results-based climate financing to catalyze climate markets.Publication Commodity Markets Outlook, October 2021(World Bank, Washington, DC, 2021-10-21)Commodity prices have risen to high levels by historical standards. Energy prices have increased sharply, especially for natural gas and coal, while most non-energy prices have plateaued after steep increases earlier in the year. Crude oil prices are forecast to average $74/bbl in 2022, up from a projected $70/bbl in 2021. After registering more than 48 percent increase this year, metal prices are projected to decline 5 percent in 2022. Agricultural prices, which are projected to rise more than 20 percent this year, are expected to broadly stabilize in 2022. These forecasts are subject to substantial risks, from adverse weather, further supply constraints, or additional outbreaks of COVID-19. Energy prices are particularly at risk of additional volatility in the near-term given low inventory levels. A Special Focus section explores the impact of urbanization on commodity demand. Although cities are often associated with increased demand for energy commodities (and hence greenhouse gas emissions) the report finds that high-density cities, particularly in advanced economies, can have lower per capita energy demand than low-density cities. As the share of people living in urban areas is expected to continue to rise, these results highlight the need for strategic urban planning to maximize the beneficial elements of cities and mitigate their negative impacts.Publication Commodity Markets Outlook, April 2024(Washington, DC: World Bank, 2024-04-25)The conflict in the Middle East has been exerting upward pressures on prices of key commodities, notably oil and gold. High commodity prices, despite relatively subdued global GDP growth, suggest some countervailing forces offsetting tepid demand, such as heightened geopolitical strains and increasing metals-intensive investments in the energy transition. Commodity prices are forecast to soften marginally in 2024 and 2025 but remain substantially above pre-pandemic levels. Unlike most other prices, crude oil prices are expected to increase in 2024, mainly reflecting geopolitical tensions. The key risk to commodity price projections relates to the possibility of a broadening of the Middle East conflict, which could lead to significantly higher oil prices, thus reigniting global inflationary pressures. Meanwhile, food insecurity worsened markedly last year, reflecting elevated food prices and armed conflicts around the world. Should such conflicts worsen, global hunger could rise substantially. Heightened uncertainty around the commodity price outlook underscores the importance of forecast accuracy. A Special Focus section evaluates the performance of five approaches used to forecast prices of three commodities—aluminum, copper, and oil. It concludes that there is no “one-approach-beats-all.” Macroeconometric models tend to be more accurate at longer horizons, mainly due to their ability to account for the impact of structural changes. It is, however, critical to incorporate judgment and information that cannot be accounted for by statistical approaches. This highlights the importance of employing a wide range of approaches when forecasting commodity prices.