Article
Green & Sustainable Science & Technology
Milena Klimek, Jim Bingen, Bernhard Freyer, Rebecca Paxton
Summary: This paper empirically investigates the values and practices of farmers markets in Vienna, Austria and their alignment with wider alternative food practices. The study reveals the importance of alignment of values for supporting and perpetuating alternative values, with governance playing a significant role in aligning values related to market sustainability. The current structures and functions of Viennese farmers markets do not easily align with participant values and practices.
Article
Green & Sustainable Science & Technology
Catherine Nkirote Kunyanga, Morten Fibieger Byskov, Keith Hyams, Samuel Mburu, Grace Werikhe, Rawlynce Bett
Summary: The COVID-19 pandemic resulted in unprecedented disruption of global food systems and severe containment measures led to negative impacts on agri-food supply chains and food prices. This study examined the implications of the pandemic on food prices and commodities supplies using structured interviews and secondary data analysis. The findings revealed high inflation and decreased sales volumes for commodities, changes in household consumption behavior, and increased market prices for grains and pulses while declining for cabbages and Irish potatoes. These findings can inform policymakers in implementing future shock and pandemic control protocols for food security and urban livelihoods.
Article
Food Science & Technology
Sudha Narayanan, Shree Saha
Summary: During the lockdown in India, food prices increased significantly for commodities such as pulses, edible oils, potato, and tomato. Smaller cities experienced a higher increase in prices, with some retail food prices rising by as much as 20%. Food retailers faced operational challenges but also displayed resilience through innovative adaptations.
GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT
(2021)
Article
Economics
Helena Chulia, Tony Klein, Jorge A. Munoz Mendoza, Jorge M. Uribe
Summary: The recent significant increases in gas and electricity prices in Europe highlight the vulnerability of the continent to energy supply shocks. A study investigates the impact of natural gas price shocks on local electricity prices in 21 European markets and finds that vulnerability varies over time and quantiles. Extreme quantiles of electricity prices are significantly and symmetrically influenced by gas price shocks, while moderate price changes show a disconnection between electricity and gas markets. The study also identifies the European countries most and least vulnerable to gas price shocks, which is attributed to their energy mix for electricity production. This vulnerability index has implications for country-specific regulations and energy policies to reduce reliance on gas, combat energy poverty, and promote renewable energy sources.
Article
Development Studies
Chimere O. Iheonu, Sodiq A. Oladipupo
Summary: This study examines the impact of food prices on poverty in sub-Saharan African countries and finds that an increase in food prices leads to a higher proportion of Africans falling into poverty. The study also shows that the effect of rising food prices is greater in countries with lower poverty levels, pushing more Africans into poverty.
SUSTAINABLE DEVELOPMENT
(2023)
Article
Geography
Gwyneth M. Manser
Summary: Although there is significant diversity in farmers markets, this diversity is underexamined in academic literature. Farmers market organizations prioritize geographic proximity, economic, and community-oriented values and goals, while paying less attention to values such as equity, health, and sustainability. Additionally, markets use standards and regulations to promote a vision of 'good food' centered around quality, authenticity, scale of production, health, sustainability, and ethics.
JOURNAL OF RURAL STUDIES
(2022)
Article
Green & Sustainable Science & Technology
Linh Khac Bui, Huyen Hoang
Summary: The study reveals that engaging in non-farm employment has a positive and significant impact on reducing household food poverty and vulnerability in rural Vietnam. Additionally, 31% of non-food-poor households in rural areas face a high probability of falling into food poverty in the future, especially in the North-west region of Vietnam.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2021)
Article
Geography
Lauren Miller, Jonathan Malacarne
Summary: For areas with limited access to food, farmers markets and incentive programs have been suggested to increase the availability of fresh and nutritious food. However, despite these efforts, access to healthful foods remains complex. This study proposes a multi-dimensional indicator of access that considers the availability, affordability, and acceptability of nutritious food within the constraints faced by households. Using a simulation model, the researchers evaluate the impact of adding or removing farmers markets and conventional food retailers on food access in areas with low access. The findings suggest that access to grocery stores plays a larger role in overall food access for SNAP households in Maine counties, highlighting the importance of considering household barriers when implementing additional farmers markets.
Article
Environmental Sciences
Sheng Cheng, Xinran Li, Yan Cao
Summary: In recent years, global food prices have experienced a significant shift due to frequent extreme weather events caused by temperature anomalies and the overlapping risks of COVID-19. The threat posed by temperature anomalies has expanded beyond agricultural production to all aspects of the food supply and demand channels, resulting in increased volatility in food markets. Studying trends in global food prices is of vital importance in providing early warning signs for nations to ensure the stability of the food market.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Computer Science, Artificial Intelligence
Luc Rocher, Arnaud J. Tournier, Yves-Alexandre de Montjoye
Summary: Algorithms are crucial in digital marketplaces, but their deployment has raised concerns about anti-competitive behavior. Previous research focused on cases where firms use the same algorithm, neglecting the possibility of adversarial collusion. In this study, we propose a network-based framework to model pricing algorithms and discover that firms can manipulate competitors' algorithms for increased profits. This calls for policymakers and regulatory agencies to consider adversarial manipulations in algorithmic pricing.
NATURE MACHINE INTELLIGENCE
(2023)
Article
Development Studies
Yuanyuan Cai, Jinlong Gao
Summary: This study examines the amenity and dis-amenity effects of wet markets in Beijing using housing transaction data and online review scores. The findings indicate a nonlinear relationship between wet market accessibility and urban housing prices. The perceived quality of wet markets also influences housing prices, with high-scoring markets leading to price appreciation and low-scoring markets leading to price depreciation. This study offers valuable insights for scholars and urban planning decision-makers.
HABITAT INTERNATIONAL
(2022)
Article
Psychology, Multidisciplinary
Beatriz Guzman-Perez, Maria Victoria Perez-Monteverde, Javier Mendoza-Jimenez, Candido Roman-Cervantes
Summary: This study aims to design specific social sustainability metrics for urban food markets from a bottom-up perspective, using the Integrated Social Value model. New social sustainability indicators were obtained and applied to analyze an entity, proving relevant and understandable to stakeholders. This work contributes to establishing a system of sustainability indicators for similar organizations in Spain in the future.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Multidisciplinary Sciences
Zhaolin Shen, Wei Fan, Jiang Hu
Summary: This paper, based on the data from the China Household Finance Survey (CFPS), examines the impact of income inequality and household leverage on consumption in different regions, urban and rural areas. The findings suggest that increasing income inequality hampers household consumption growth, while moderate household leverage can promote consumption to a certain extent. The research provides evidence for understanding the relationship between income inequality, household leverage, and consumption, and offers insights for policy formulation.
Article
Development Studies
Julia Davies, Jordan Blekking, Corrie Hannah, Andrew Zimmer, Nupur Joshi, Patrese Anderson, Allan Chilenga, Tom Evans
Summary: Traditional markets play a critical role in the rural-urban food systems of sub-Saharan Africa. However, these markets face challenges such as infrastructure deficits, poor waste management, and internal conflict. Our study aims to explore the governance structures of traditional markets to identify effective institutional arrangements for market management.
HABITAT INTERNATIONAL
(2022)
Article
Environmental Sciences
Muntazir Hussain, Ramiz Ur Rehman
Summary: The study investigates the volatility connectedness between GCC stock market and S&P global oil index, analyzing the impact of oil price volatility on net volatility spillover in GCC stock market. The results suggest that there is volatility connectedness between GCC stock markets and S&P Global Oil Index, and the volatility in GCC stock markets is greater than the volatility spillover from other GCC countries. Furthermore, the study shows that global oil price volatility has a divergent causal impact on net spillover in GCC stock markets.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Economics & Policy
John Gibson
AUSTRALIAN JOURNAL OF AGRICULTURAL AND RESOURCE ECONOMICS
(2020)
Article
Economics
John Gibson
Summary: Night lights data are increasingly used in applied economics, with the newer and better VIIRS data showing 80% higher predictive power for real GDP compared to the outdated DMSP data. Spatial inequality is greatly understated with DMSP data, especially in densely populated regions. A Pareto correction for top-coding of DMSP data has a modest effect.
OXFORD BULLETIN OF ECONOMICS AND STATISTICS
(2021)
Article
Environmental Sciences
Xiaoxuan Zhang, John Gibson
Summary: The use of nighttime lights (NTL) data as a proxy for local economic activity is well-established, but existing validation studies have some limitations. This study provides more updated and disaggregated validation results by examining the relationships between GDP and NTL data for 2657 county-level units in China.
Article
Economics
John Gibson
Summary: The pace and scope of Covid-19 vaccination varies across OECD countries. A higher fully vaccinated rate is associated with a larger rise in economic activity, while the partial vaccination rate has no relationship with economic rebound. Despite no apparent relationship with Covid-19 cases or mortality, vaccination rates are still correlated with changes in economic activity.
APPLIED ECONOMICS LETTERS
(2022)
Article
Business, Finance
Gashaw T. Abate, Alan de Brauw, John Gibson, Kalle Hirvonen, Abdulazize Wolle
Summary: Telescoping errors occur when survey respondents include events from outside the reference period in their recall. To measure the impact of telescoping bias on food consumption measures, a survey experiment was conducted, randomly assigning households to either a bounded recall or an unbounded recall. The results show that the average reported food consumption is 16% higher when using the unbounded recall method compared to the bounded recall method.
WORLD BANK ECONOMIC REVIEW
(2022)
Article
Economics
Chao Li, John Gibson, Geua Boe-Gibson
Summary: In the last two decades, the rapid increase in the foreign-born population in New Zealand has negatively affected the home ownership rates of native-born residents. A higher proportion of foreign-born population is associated with lower ownership rates for native-born residents, with much of the impact being indirect.
NEW ZEALAND ECONOMIC PAPERS
(2022)
Article
Economics
John Gibson
Summary: The role of agriculture in contributing to economic development in the Pacific is most significant in Melanesia due to rapid population growth and limited emigration options. The non-agricultural sector has not grown quickly enough to facilitate the shift of labor out of agriculture. Export industries in Melanesia primarily rely on non-renewable resources or unsustainable extraction rates, leading to high labor costs and limited employment opportunities. Agriculture plays a crucial role in providing food and livelihoods, although the confusion between food security and self-sufficiency and data weaknesses hinder effective policy interventions. The ability of indigenous farming systems to meet rising food demand caused by population growth remains uncertain.
NEW ZEALAND ECONOMIC PAPERS
(2023)
Article
Economics
Bonggeun Kim, John Gibson, Geua Boe-Gibson
Summary: Satellite-detected night lights data are widely used to evaluate economic impacts of sanctions. However, measurement errors in these data, from blurring and bottom-coding, are rarely considered. This study uses a difference-in-differences analysis to examine the effects of South Korea's sanctions on North Korea's Kaesong Industrial Zone closure in 2016. It shows that using the popular Defense Meteorological Satellite Program (DMSP) night lights data may lead to imprecise and underestimated impacts, highlighting the importance of considering measurement errors.
Article
Geography
Xiaoxuan Zhang, John Gibson, Xiangzheng Deng
Summary: Regional science and economics increasingly use DMSP night-time lights data to measure spatial inequality, but the data's errors lead to significantly lower inequality estimates compared to subnational GDP data, as well as newer and more accurate satellite data. Our analysis of county-level data from China and the United States demonstrates this bias, showing that DMSP data distort estimates of both the level and trend in spatial inequality.
REGIONAL SCIENCE POLICY AND PRACTICE
(2023)
Article
Area Studies
Zaira Najam, John Gibson
Summary: This paper examines poverty convergence in 100 districts of Pakistan from 2004 to 2014 using five poverty measures. The results show unconditional convergence with conventional money-metric poverty measures, but no convergence with multidimensional poverty indices. The difference in apparent poverty convergence could impact regional development policy choices.
ASIA & THE PACIFIC POLICY STUDIES
(2022)
Article
Economics
John Gibson
Summary: The popular narrative that New Zealand's policy response to the Coronavirus was 'go hard, go early' is misleading because the most stringent restrictions were imposed after the likely peak in new infections. Research shows that restrictions imposed after the inflection point in infections is reached are ineffective in reducing total deaths, and even early restrictions only have modest effects.
NEW ZEALAND ECONOMIC PAPERS
(2022)
Article
Economics
John Gibson, Susan Olivia, Geua Boe-Gibson, Chao Li
Summary: Popular DMSP night lights data are flawed and less effective in predicting GDP compared to newer and better VIIRS data, especially at lower levels of spatial hierarchy and in lower density areas. The relationship between city lights and GDP is noisier with DMSP data, while spatial inequality is considerably understated, particularly in urban sectors and higher density areas. Adjustments made to correct for top-coding in DMSP data only have a modest effect and still miss key features of economic activity in big cities.
JOURNAL OF DEVELOPMENT ECONOMICS
(2021)
Article
Economics
John Gibson
Summary: This study found a significant micro-geographic clustering phenomenon in the production and recognition of economics research, which is not apparent in other disciplines. This concentration may increase systemic risk and lead to insufficient research attention to local context.
SCOTTISH JOURNAL OF POLITICAL ECONOMY
(2021)
Article
Economics
John Gibson, Susan Olivia, Geua Boe-Gibson
JOURNAL OF ECONOMIC SURVEYS
(2020)
Article
Business, Finance
Mike Webb, Anna Strutt, John Gibson, Terrie Walmsley
