Publication: Incomplete, Slow, and Asymmetric Price Transmission in Ten Product Markets of Bolivia
Loading...
Published
2012-12
ISSN
Date
2013-01-28
Author(s)
Editor(s)
Abstract
With food prices on the rise, understanding the transmission of price shocks, both internationally and domestically, is central for trade policy analysis. This paper examines spatial market integration and its determinants for ten key food products in Bolivia, across the four most important cities, and with the world, over the period 1991-2008. Within Bolivia, markets for onions, chicken, sugar, and to a lower extent for potatoes, cooking oil, wheat flour, and rice are integrated. However, only chicken, sugar, cooking oil, and rice are integrated with world markets, with incomplete and slow transmission. The perennial result of asymmetric price adjustment to foreign shocks also holds for Bolivia: domestic prices respond faster when the world price increases than when it decreases. This points to a perennial recommendation: the importance of stimulating competitive practices to avoid welfare redistribution due to imperfect competition. Infrastructure improvements will also contribute to accessible food prices for the poor.
Link to Data Set
Citation
“Varela, Gonzalo J.. 2012. Incomplete, Slow, and Asymmetric Price Transmission in Ten Product Markets of Bolivia. Policy Research Working Paper; No. 6291. © World Bank. http://hdl.handle.net/10986/12187 License: CC BY 3.0 IGO.”
Digital Object Identifier
Associated URLs
Associated content
Other publications in this report series
Publication The Economic Value of Weather Forecasts: A Quantitative Systematic Literature Review(Washington, DC: World Bank, 2025-09-10)This study systematically reviews the literature that quantifies the economic benefits of weather observations and forecasts in four weather-dependent economic sectors: agriculture, energy, transport, and disaster-risk management. The review covers 175 peer-reviewed journal articles and 15 policy reports. Findings show that the literature is concentrated in high-income countries and most studies use theoretical models, followed by observational and then experimental research designs. Forecast horizons studied, meteorological variables and services, and monetization techniques vary markedly by sector. Estimated benefits even within specific subsectors span several orders of magnitude and broad uncertainty ranges. An econometric meta-analysis suggests that theoretical studies and studies in richer countries tend to report significantly larger values. Barriers that hinder value realization are identified on both the provider and user sides, with inadequate relevance, weak dissemination, and limited ability to act recurring across sectors. Policy reports rely heavily on back-of-the-envelope or recursive benefit-transfer estimates, rather than on the methods and results of the peer-reviewed literature, revealing a science-to-policy gap. These findings suggest substantial socioeconomic potential of hydrometeorological services around the world, but also knowledge gaps that require more valuation studies focusing on low- and middle-income countries, addressing provider- and user-side barriers and employing rigorous empirical valuation methods to complement and validate theoretical models.Publication The Macroeconomic Implications of Climate Change Impacts and Adaptation Options(Washington, DC: World Bank, 2025-05-29)Estimating the macroeconomic implications of climate change impacts and adaptation options is a topic of intense research. This paper presents a framework in the World Bank's macrostructural model to assess climate-related damages. This approach has been used in many Country Climate and Development Reports, a World Bank diagnostic that identifies priorities to ensure continued development in spite of climate change and climate policy objectives. The methodology captures a set of impact channels through which climate change affects the economy by (1) connecting a set of biophysical models to the macroeconomic model and (2) exploring a set of development and climate scenarios. The paper summarizes the results for five countries, highlighting the sources and magnitudes of their vulnerability --- with estimated gross domestic product losses in 2050 exceeding 10 percent of gross domestic product in some countries and scenarios, although only a small set of impact channels is included. The paper also presents estimates of the macroeconomic gains from sector-level adaptation interventions, considering their upfront costs and avoided climate impacts and finding significant net gross domestic product gains from adaptation opportunities identified in the Country Climate and Development Reports. Finally, the paper discusses the limits of current modeling approaches, and their complementarity with empirical approaches based on historical data series. The integrated modeling approach proposed in this paper can inform policymakers as they make proactive decisions on climate change adaptation and resilience.Publication Rigging the Scores: Corruption through Scoring Rule Manipulation in Public Procurement Auctions(Washington, DC: World Bank, 2025-12-02)Public procurement is highly susceptible to corruption, especially in developing countries. Although open auctions are widely adopted to curb it, this paper finds that corruption remains prevalent even within this procurement format. Procurement officers can collaborate with firms to manipulate scoring rules, ensuring predetermined winners, while corrupt firms submit noncompetitive bids to meet minimum bidder requirements. Using extensive data from Chinese public procurement auctions, the paper introduces model-driven statistical tools to detect such corruption, identifying a corruption rate of 65 percent. A procurement expert audit survey confirms the tools’ reliability, with a 91 percent probability that experts recognize suspicious scoring rules when flagged. Firm-level analysis reveals that local, state-owned, and less productive firms are favored in corrupt auctions. Lastly, the paper explores policy implications. Analysis of the national anti-corruption campaign since 2012 suggests that general investigations may be insufficient to address deeply ingrained corrupt practices. Using counterfactuals based on an estimated structural model, the paper shows that implementing anonymous call-for-tender evaluations could improve social welfare by 10 percent by eliminating suspicious rules and encouraging broader participation.Publication Labor Demand in the Age of Generative AI: Early Evidence from the U.S. Job Posting Data(Washington, DC: World Bank, 2025-11-18)This paper examines the causal impact of generative artificial intelligence on U.S. labor demand using online job posting data. Exploiting ChatGPT’s release in November 2022 as an exogenous shock, the paper applies difference-in-differences and event study designs to estimate the job displacement effects of generative artificial intelligence. The identification strategy compares labor demand for occupations with high versus low artificial intelligence substitution vulnerability following ChatGPT’s launch, conditioning on similar generative artificial intelligence exposure levels to isolate substitution effects from complementary uses. The analysis uses 285 million job postings collected by Lightcast from the first quarter of 2018 to the second quarter of 2025Q2. The findings show that the number of postings for occupations with above-median artificial intelligence substitution scores fell by an average of 12 percent relative to those with below-median scores. The effect increased from 6 percent in the first year after the launch to 18 percent by the third year. Losses were particularly acute for entry-level positions that require neither advanced degrees (18 percent) nor extensive experience (20 percent), as well as those in administrative support (40 percent) and professional services (30 percent). Although generative artificial intelligence generates new occupations and enhances productivity, which may increase labor demand, early evidence suggests that some occupations may be less likely to be complemented by generative artificial intelligence than others.Publication Investment Policy Reforms and Foreign Direct Investment Inflows(Washington, DC: World Bank, 2025-12-01)Foreign direct investment has the potential to introduce much-needed capital and expertise in emerging and developing economies. To attract foreign direct investment, many countries have eased restrictions on foreign ownership in various sectors, reformed their institutions, and set up investment promotion agencies. Until the mid-2010s, Ethiopia remained one of the few countries that resisted this trend, with several stringent restrictions in place on foreign direct investment entry and operations in the country. This study employs a synthetic control method to examine patterns in foreign capital inflows following a series of investment policy reforms that were substantively introduced in the mid-2010s (circa 2015). The study offers evidence that investment policy reforms contributed to a significant foreign direct investment inflow in Ethiopia, compared to what would have occurred in the absence of these policies. An alternative strategy that conservatively specifies the donor country pool using an AI-assisted deep search technique changes the donor pool weighting matrix of the synthetic control method, but the estimated policy effects largely remain robust to this specification. The findings highlight the importance of targeted reforms in promoting foreign direct investment inflow in developing countries.
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication High Food Prices, Latin American and the Caribbean Responses to a New Normal(Washington, DC, 2014-01)Yet the current situation differs from 2007-2008 in critical respects. First, recent international price increases are more widespread across agricultural commodities than in 2008, when price spikes were led by few grains such as wheat and rice. Second, natural resources are affecting food production: land and water constraints are more binding than in the past and weather induced production shortfalls are more of a factor now than it was 2008. Climate change also adds to this uncertainty, particularly since a larger share of grain exports are being produced in areas more exposed to climate variability. Third, long term structural changes in the markets are more clearly a major factor this time, as demand for feed and income-elastic foods under sustained and widespread income growth in emerging countries is increasing steadily. Fourth, the global stocks/use ratio for major cereals, which used to hover in the range of 30-35 percent in the 1980s and 1990s, has been around 20 percent after 2003 due largely to long-term policy changes in high-income countries; and stocks of some critical players are now at all-time lows. Global markets are currently experiencing the second sharp spike in food prices in the last four years. While no one has a crystal ball to predict with confidence the future prices of food products, there are good reasons to believe that structural factors affecting both supply and demand, discussed in this report, have recently evolved in ways that will increase the average levels and volatility of prices above those of recent decades. Ensuring that the world's populations, and particularly vulnerable groups, are adequately fed is one of the most important contributions of the World Bank to the global public good's agenda. This report describes how the current situation is affecting countries in the Latin America and Caribbean region, including the impact on different groups within countries, and proposes strategies to best assist our client countries in responding.Publication The Impact of Exogenous Shocks on Households in the Pacific : A Micro-Simulation Analysis(World Bank Group, Washington, DC, 2014-09)This paper seeks to provide evidence on the extent of household vulnerability to exogenous economic shocks in the Pacific region and consider policy options that help to manage this risk. Characteristics of the region such as remoteness, small size, dispersion, and urbanizing populations lead to pronounced vulnerabilities. The paper presents macroeconomic and distributional analysis and complements it with results of a micro-simulation model customized for this work based on a model used previously by the World Bank to analyze the impacts of the Food and Fuel Price Crisis. The results of micro-simulations serve to highlight the very high levels of economic vulnerability faced in the region. Impacts of economic shocks are not confined to well-off individuals, but have major impacts on the poor. Even moderate shocks are likely to push sizeable fractions of the population below the poverty line. The shocks considered are not worst case scenarios, but those that can and have occurred frequently. The results show that households are hard hit by increases in oil prices, especially in remote islands where freight costs are higher, while countries on aggregate, and individual households, are exposed to volatility in the prices of the one or two imported food commodities that they depend on. Livelihoods are also often driven by external demand. In particular, many poor households in countries like Papua New Guinea have livelihood strategies centered on cash crops. The results point to the importance of helping households of the Pacific to manage the risk inherent in their lives while prudently using macroeconomic tools at the disposal of the government.Publication How Vulnerable Are Arab Countries to Global Food Price Shocks?(World Bank, Washington, DC, 2012-03)This paper presents new estimates of pass-through coefficients from international to domestic food prices by country in the Middle East and North Africa. The estimates indicate that, despite the use of food price subsidies and other government interventions, a rise in global food prices is transmitted to a significant degree into domestic food prices in many countries in the Middle East and North Africa, although cross-country variation is significant. In nearly all countries, domestic food prices are highly downwardly rigid. The finding of asymmetric price transmission suggests that not only international food price levels matter, but also food price volatility. High food pass-through tends to increase inflation pressures, where food consumption shares are high. Domestic factors, often linked to storage, logistics, and procurement, have also played a major role in explaining high food inflation in the majority of countries in the region.Publication Agribusiness Indicators : Synthesis Report(Washington, DC, 2014-12)The need for countries in Sub-Saharan Africa to build more productive, modern, and market-oriented farming sectors is one of our most pressing development challenges. In coming years, African agriculture will have to increase food production and expand and intensify value chains in order to meet changing demand on the part of a rapidly expanding and urbanizing consumer base. The process of doing this will enable African countries to begin pushing back against their currently growing reliance on food imports. An essential precondition for bringing this transformation to pass is to increase and improve the information on which farmers and agribusinesses base their production and investment decisions, and on which public sector institutions base their policies. The purpose of the Agribusiness Indicators (ABIs) Project is to provide this kind of empirical information in the form of a series of metrics and indicators that can be used to measure change over time and to make direct comparisons between countries, especially policy makers. These indicators will be used to inform policy dialogue, including dialogue between representatives of the private and public sectors. It will provide a common framework of reference with which to communicate their respective concerns, priorities, and intentions. This will facilitate better communication that leads to constructive interaction between public officials, farmers producer organizations, private investors, civil society organizations (CSOs), and others. Ultimately, it will be their decisions that determine the course of agricultural development and commercialization in their respective countries. The Agribusiness Indicators are intended to furnish them with information from sources within both the private and public sectors which can be cross-referenced and correlated. This type of information has generally not been available in the past. Some of the indicators are particularly useful in revealing the attributes of countries with policy portfolios that are supportive of agribusiness investment.Publication South Asia Economic Focus, June 2011 : Food Inflation(Washington, DC, 2011-06)This report focuses on the impact of policies and exogenous shocks on food inflation. It deals with four elements: 1) the pass-through of global food (and other commodity) prices, 2) macroeconomic policies, 3) market regulation and short-term supply shocks, and 4) long-term structural shifts and the terms of trade between agriculture and other sectors of the economy. This report examines food and overall inflation trends in South Asia, which is experiencing relatively high inflation, and is home to a large number of poor. There are many more poor people who are net buyers of food than there are those who benefit from higher prices of agricultural products even in the predominantly rural countries of South Asia. The report examines both short-term and longer-term drivers of rising food prices in the region, including developments in international commodity prices, domestic supply shocks, accommodative demand side policies, structural changes in demand patterns, and long-term agricultural productivity trends. The impact on poverty is examined, as is the region's preparedness for food price shocks. The priorities laid out in the Bank's post-crisis directions paper (2010) and the mandates given to the Bank by the G20 are to focus on food price volatility, agriculture and food security, and agricultural productivity. In line with these priorities, the report ends with some policy directions to manage the macroeconomic impact of food price inflation, and the potential spillover into generalized inflation, to manage the social impact of the food price hikes, and to hedge against risks associated with food price volatility. The report is organized as follows: section two discusses the anatomy and short- and longer-run drivers of food and overall inflation in South Asia. Section three discusses the impact of government policies affecting agricultural marketing, inputs and trade in South Asian countries. Section four presents an assessment of the impact of food price increases on poverty and an assessment of the preparedness of South Asian countries social protection schemes to cope with this impact. Section five concludes with some policy directions that could be pursued by South Asia to improve agricultural productivity and mitigate the impact of food price volatility on its population.
Users also downloaded
Showing related downloaded files
Publication Digital Africa(Washington, DC: World Bank, 2023-03-13)All African countries need better and more jobs for their growing populations. "Digital Africa: Technological Transformation for Jobs" shows that broader use of productivity-enhancing, digital technologies by enterprises and households is imperative to generate such jobs, including for lower-skilled people. At the same time, it can support not only countries’ short-term objective of postpandemic economic recovery but also their vision of economic transformation with more inclusive growth. These outcomes are not automatic, however. Mobile internet availability has increased throughout the continent in recent years, but Africa’s uptake gap is the highest in the world. Areas with at least 3G mobile internet service now cover 84 percent of Africa’s population, but only 22 percent uses such services. And the average African business lags in the use of smartphones and computers as well as more sophisticated digital technologies that catalyze further productivity gains. Two issues explain the usage gap: affordability of these new technologies and willingness to use them. For the 40 percent of Africans below the extreme poverty line, mobile data plans alone would cost one-third of their incomes—in addition to the price of access devices, apps, and electricity. Data plans for small- and medium-size businesses are also more expensive than in other regions. Moreover, shortcomings in the quality of internet services—and in the supply of attractive, skills-appropriate apps that promote entrepreneurship and raise earnings—dampen people’s willingness to use them. For those countries already using these technologies, the development payoffs are significant. New empirical studies for this report add to the rapidly growing evidence that mobile internet availability directly raises enterprise productivity, increases jobs, and reduces poverty throughout Africa. To realize these and other benefits more widely, Africa’s countries must implement complementary and mutually reinforcing policies to strengthen both consumers’ ability to pay and willingness to use digital technologies. These interventions must prioritize productive use to generate large numbers of inclusive jobs in a region poised to benefit from a massive, youthful workforce—one projected to become the world’s largest by the end of this century.Publication Lebanon Economic Monitor, Fall 2022(Washington, DC, 2022-11)The economy continues to contract, albeit at a somewhat slower pace. Public finances improved in 2021, but only because spending collapsed faster than revenue generation. Testament to the continued atrophy of Lebanon’s economy, the Lebanese Pound continues to depreciate sharply. The sharp deterioration in the currency continues to drive surging inflation, in triple digits since July 2020, impacting the poor and vulnerable the most. An unprecedented institutional vacuum will likely further delay any agreement on crisis resolution and much needed reforms; this includes prior actions as part of the April 2022 International Monetary Fund (IMF) staff-level agreement (SLA). Divergent views among key stakeholders on how to distribute the financial losses remains the main bottleneck for reaching an agreement on a comprehensive reform agenda. Lebanon needs to urgently adopt a domestic, equitable, and comprehensive solution that is predicated on: (i) addressing upfront the balance sheet impairments, (ii) restoring liquidity, and (iii) adhering to sound global practices of bail-in solutions based on a hierarchy of creditors (starting with banks’ shareholders) that protects small depositors.Publication Classroom Assessment to Support Foundational Literacy(Washington, DC: World Bank, 2025-03-21)This document focuses primarily on how classroom assessment activities can measure students’ literacy skills as they progress along a learning trajectory towards reading fluently and with comprehension by the end of primary school grades. The document addresses considerations regarding the design and implementation of early grade reading classroom assessment, provides examples of assessment activities from a variety of countries and contexts, and discusses the importance of incorporating classroom assessment practices into teacher training and professional development opportunities for teachers. The structure of the document is as follows. The first section presents definitions and addresses basic questions on classroom assessment. Section 2 covers the intersection between assessment and early grade reading by discussing how learning assessment can measure early grade reading skills following the reading learning trajectory. Section 3 compares some of the most common early grade literacy assessment tools with respect to the early grade reading skills and developmental phases. Section 4 of the document addresses teacher training considerations in developing, scoring, and using early grade reading assessment. Additional issues in assessing reading skills in the classroom and using assessment results to improve teaching and learning are reviewed in section 5. Throughout the document, country cases are presented to demonstrate how assessment activities can be implemented in the classroom in different contexts.Publication World Development Report 2006(Washington, DC, 2005)This year’s Word Development Report (WDR), the twenty-eighth, looks at the role of equity in the development process. It defines equity in terms of two basic principles. The first is equal opportunities: that a person’s chances in life should be determined by his or her talents and efforts, rather than by pre-determined circumstances such as race, gender, social or family background. The second principle is the avoidance of extreme deprivation in outcomes, particularly in health, education and consumption levels. This principle thus includes the objective of poverty reduction. The report’s main message is that, in the long run, the pursuit of equity and the pursuit of economic prosperity are complementary. In addition to detailed chapters exploring these and related issues, the Report contains selected data from the World Development Indicators 2005‹an appendix of economic and social data for over 200 countries. This Report offers practical insights for policymakers, executives, scholars, and all those with an interest in economic development.Publication Argentina Country Climate and Development Report(World Bank, Washington, DC, 2022-11)The Argentina Country Climate and Development Report (CCDR) explores opportunities and identifies trade-offs for aligning Argentina’s growth and poverty reduction policies with its commitments on, and its ability to withstand, climate change. It assesses how the country can: reduce its vulnerability to climate shocks through targeted public and private investments and adequation of social protection. The report also shows how Argentina can seize the benefits of a global decarbonization path to sustain a more robust economic growth through further development of Argentina’s potential for renewable energy, energy efficiency actions, the lithium value chain, as well as climate-smart agriculture (and land use) options. Given Argentina’s context, this CCDR focuses on win-win policies and investments, which have large co-benefits or can contribute to raising the country’s growth while helping to adapt the economy, also considering how human capital actions can accompany a just transition.