We examine the effects that international commodity price shocks have on external debt using panel data for a world sample of 93 countries spanning the period 1970-2007. Our main finding is that positive commodity price shocks lead to a significant reduction in the level of external debt in democracies, but to no significant reduction in the level of external debt in autocracies. To explain this result, we show that positive commodity price shocks lead to a statistically significant and quantitatively large increase in total government expenditures in autocracies. In democracies on the other hand government expenditures did not increase significantly. We also document that following positive windfalls from international commodity price shocks the risk of default on external debt decreased in democracies, but increased significantly in autocracies.
This paper investigates the impact of commodity price shocks on financial sector fragility. Using a large sample of 71 commodity exporters among emerging and developing economies, it shows that negative shocks to commodity prices tend to weaken the financial sector, with larger shocks having more pronounced impacts. More specifically, negative commodity price shocks are associated with higher non-performing loans, bank costs and banking crises, while they reduce bank profits, liquidity, and provisions to nonperforming loans. These adverse effects tend to occur in countries with poor quality of governance, weak fiscal space, as well as those that do not have a sovereign wealth fund, do not implement macro-prudential policies and do not have a diversified export base. These findings are robust to a battery of robustness checks.
Declining commodity prices during mid-2014-2016 posed significant challenges to commodity-exporting economies. The severe terms of trade shock associated with a sharp fall in world commodity prices have raised anew questions about the viability of pegged exchange rate regimes. More recently, the COVID-19 pandemic and the measures needed to contain its spread have been associated with a significant disruption in several economic sectors, in particular, travel, tourism, and hospitality industry, adding to the downward pressure on commodity prices, a sharp fall in foreign exchange earnings, and depressed economic activity in most commodity exporters. This paper reviews country experiences with different exchange rate regimes in coping with commodity price shocks and explores the role of flexible exchange rates as a shock absorber, analyzing the macroeconomic impact of adverse term-of-trade shocks under different regimes using event study and panel vector autoregression techniques. It also analyzes, conceptually and empirically, policy and technical considerations in making exchange rate regime choices and discusses the supporting policies that should accompany a given regime choice to make that choice sustainable. It offers lessons that could be helpful to the Caribbean commodity-exporters.
Many emerging economies depend on commodities whose prices are volatile. High prices for these commodities naturally help those sectors related to the production of the commodities, but the economic benefits for other sectors are ambiguous. These effects can be different according to the characteristics of the sector, leading to a positive or negative sectoral effect depending on several features. Also, commodity price shocks may affect spending differently according to the characteristics of the population. A feature prevalent in many emerging economies is a low degree of banking penetration, which can affect the magnitude of commodity shocks, because banking services are related to how people save and borrow, affecting their ability to smooth spending when they face income shocks. This dissertation studies the effects of commodity price shocks in exporting economies, analyzing the overall and sectoral effects, as well as the regional effects according to access to banking services among inhabitants. The first chapter analyzes the effect of commodity price fluctuations on both overall and sectoral outcomes in a commodity-exporting economy. Using Chilean and international copper market data, I find positive copper price changes stemming from copper-specific demand shocks generate a broad GDP expansion with no visible decline in the exports of any sector, including manufacturing. These results provide evidence against the Dutch disease hypothesis involving the crowding out effect of commodity price increases on the manufacturing sector. The second chapter studies how features of a commodity-exporting economy such as the degree of substitution between domestic and foreign goods, the income effect on labor supply, and trade policy related to tariffs on imports shape overall and sectoral effects of commodity price shocks. For that, I estimate key structural parameters of a small open economy business-cycle model with 6 sectors by matching my empirical impulse responses and find that a low degree of substitution between domestic and foreign goods explains the positive sectoral effect of a commodity price shock. Then, I evaluate how tariffs on imports shape the effect of commodity price shocks and find low tariffs make the small open economy less sensitive to commodity price shocks when the elasticity of substitution between domestic goods and imports is small. The third chapter studies the relationship between access to banking services and the magnitude of external shocks. Using quarterly data of the number of checking and savings bank accounts per person as an indicator of access to banking services, I analyze the effects of commodity price changes conditional on the number of bank accounts per person across Mexican states. I find decreases in commodity prices generate a bigger contraction in total production in states with low numbers of bank accounts per person. A rise in commodity prices generates a bigger expansion of the number of formal workers as well as a wider contraction in the number of informal workers in regions with a low number of bank accounts per person
The experience of developing countries over 1990-2010 indicates that commodity prices have a significant impact on fiscal outcomes. Both revenue and expenditure rise in response to commodity (import or export) price increases; the response of the fiscal deficit is ambiguous. A floating exchange rate regime only partially offsets the impact; foreign-exchange reserves do not dampen the effects. Hence, there is a strong case for fiscal hedging against commodity price shocks. Hedging instruments based on a limited set of benchmark world prices for a narrow set of commodities may suffice to realize most of the potential benefits.
The behaviour of commodity prices never ceases to marvel economists, financial analysts, industry experts, and policymakers. Unexpected swings in commodity prices used to occur infrequently but have now become a permanent feature of global commodity markets. This book is about modelling commodity price shocks. It is intended to provide insights into the theoretical, conceptual, and empirical modelling of the underlying causes of global commodity price shocks. Three main objectives motivated the writing of this book. First, to provide a variety of modelling frameworks for documenting the frequency and intensity of commodity price shocks. Second, to evaluate existing approaches used for forecasting large movements in future commodity prices. Third, to cover a wide range and aspects of global commodities including currencies, rare–hard–lustrous transition metals, agricultural commodities, energy, and health pandemics. Some attempts have already been made towards modelling commodity price shocks. However, most tend to narrowly focus on a subset of commodity markets, i.e., agricultural commodities market and/or the energy market. In this book, the author moves the needle forward by operationalizing different models, which allow researchers to identify the underlying causes and effects of commodity price shocks. Readers also learn about different commodity price forecasting models. The author presents the topics to readers assuming less prior or specialist knowledge. Thus, the book is accessible to industry analysts, researchers, undergraduate and graduate students in economics and financial economics, academic and professional economists, investors, and financial professionals working in different sectors of the commodity markets. Another advantage of the book’s approach is that readers are not only exposed to several innovative modelling techniques to add to their modelling toolbox but are also exposed to diverse empirical applications of the techniques presented.
In the years following the global financial crisis, many low-income countries experienced rapid recovery and strong economic growth. However, many are now facing enormous difficulties because of rapidly rising food and fuel prices, with the threat of millions of people being pushed into poverty around the globe. The risk of continued food price volatility is a systemic challenge, and a failure in one country has been shown to have a profound impact on entire regions. This volume addresses the challenges of commodity price volatility for low-income countries and explores some macroeconomic policy options for responding to commodity price shocks. The book then looks at inclusive growth policies to address inequality in commodity-exporting countries, particularly natural resource rich countries. Perspectives from the Middle East and North Africa, sub-Saharan Africa, emerging Asia, and Mexico are presented and, finally, the role of the international donor community is examined. This volume is a must read for policymakers everywhere, from those in advanced, donor countries to those in countries with the poorest and most vulnerable populations.
