Aswini Kumar Mishra, Ashok K Mishra, Kamesh Anand, Swayam Ranjan
This study examines the dynamics of the integration of and risk transmission between India’s crude oil price index and nine agricultural commodity spot prices. The study uses daily price volatility data from June 2015 to December 2023 and a time-varying parameter vector autoregressive framework to investigate short-term and long-term connectedness dynamics. The results show a strong relationship between crude oil and agricultural commodity prices in India. Soybean oil is a significant transmitter within the network, and crude oil emerges as a primary net recipient. The average total connectedness index (TCI) value was about 36 per cent, with 27 per cent in the short term and 8.9 per cent in the long term. The average TCI value during the Coronavirus disease (COVID-19) period was 32.6 per cent, and that during the Russia–Ukraine war period was 24.3 per cent, with volatility spillovers in the network occurring primarily in the short term. Dynamic variations in connectedness over time highlight the impact of specific events, such as the COVID-19 pandemic and the Russia–Ukraine war. This study identifies the net transmitters and net receivers of volatility shocks within a network, providing insights that can help with portfolio diversification and strategic decision-making.
{"title":"Risk spillovers between crude oil and agricultural commodities in India: Insights from two major global disruptions","authors":"Aswini Kumar Mishra, Ashok K Mishra, Kamesh Anand, Swayam Ranjan","doi":"10.1093/erae/jbaf011","DOIUrl":"https://doi.org/10.1093/erae/jbaf011","url":null,"abstract":"This study examines the dynamics of the integration of and risk transmission between India’s crude oil price index and nine agricultural commodity spot prices. The study uses daily price volatility data from June 2015 to December 2023 and a time-varying parameter vector autoregressive framework to investigate short-term and long-term connectedness dynamics. The results show a strong relationship between crude oil and agricultural commodity prices in India. Soybean oil is a significant transmitter within the network, and crude oil emerges as a primary net recipient. The average total connectedness index (TCI) value was about 36 per cent, with 27 per cent in the short term and 8.9 per cent in the long term. The average TCI value during the Coronavirus disease (COVID-19) period was 32.6 per cent, and that during the Russia–Ukraine war period was 24.3 per cent, with volatility spillovers in the network occurring primarily in the short term. Dynamic variations in connectedness over time highlight the impact of specific events, such as the COVID-19 pandemic and the Russia–Ukraine war. This study identifies the net transmitters and net receivers of volatility shocks within a network, providing insights that can help with portfolio diversification and strategic decision-making.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"183 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Unravelling theory postulates that consumers assume products without quality information are of the lowest quality. In a discrete choice experiment (DCE) with 1987 respondents from the UK, we find evidence against this assumption. Affirmative disclosure, which indicates only quality above the lowest level, lowers marginal utilities compared to complete disclosure. The development in food choice DCE studies, from textual and complete towards visual and affirmative increases mean willingness to pay and error variance. This suggests that analysts should carefully consider how attributes are presented when designing DCEs to avoid biased welfare estimates, especially when aiming for accurate market predictions or policy advice.
{"title":"Unravelling theory in choice analysis: do consumers fill in the blanks?","authors":"Anna Kristina Edenbrandt, Barbara Häsler","doi":"10.1093/erae/jbaf009","DOIUrl":"https://doi.org/10.1093/erae/jbaf009","url":null,"abstract":"Unravelling theory postulates that consumers assume products without quality information are of the lowest quality. In a discrete choice experiment (DCE) with 1987 respondents from the UK, we find evidence against this assumption. Affirmative disclosure, which indicates only quality above the lowest level, lowers marginal utilities compared to complete disclosure. The development in food choice DCE studies, from textual and complete towards visual and affirmative increases mean willingness to pay and error variance. This suggests that analysts should carefully consider how attributes are presented when designing DCEs to avoid biased welfare estimates, especially when aiming for accurate market predictions or policy advice.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"183 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I develop a model of provision competition between food retailers to examine one potential economic rationale behind voluntary cage-free egg pledges. I show that competition pushes retailers to a prisoners’ dilemma equilibrium where retailers incur fixed costs to offer both non-cage-free and cage-free eggs to steal or prevent the loss of some basket-shopping consumers. In a dynamic setting, retailers can potentially sustain an equilibrium of higher profits by collectively withholding non-cage-free eggs. I show that changing supply conditions and consumer trends could have led to such an equilibrium with pledges acting as a signal to potentially facilitate tacit coordination.
{"title":"Why did U.S. food retailers voluntarily pledge to go cage-free with eggs?","authors":"Xiao Dong","doi":"10.1093/erae/jbaf007","DOIUrl":"https://doi.org/10.1093/erae/jbaf007","url":null,"abstract":"I develop a model of provision competition between food retailers to examine one potential economic rationale behind voluntary cage-free egg pledges. I show that competition pushes retailers to a prisoners’ dilemma equilibrium where retailers incur fixed costs to offer both non-cage-free and cage-free eggs to steal or prevent the loss of some basket-shopping consumers. In a dynamic setting, retailers can potentially sustain an equilibrium of higher profits by collectively withholding non-cage-free eggs. I show that changing supply conditions and consumer trends could have led to such an equilibrium with pledges acting as a signal to potentially facilitate tacit coordination.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"70 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ibirenoye Romaric Sodjahin, Alain Carpentier, Obafèmi Philippe Koutchadé, Fabienne Féménia
We estimate the effects of previous crops and crop acreage diversity on yields and chemical input uses. Our estimation approach relies on models of crop yields and input uses defined as systems of simultaneous equations featuring farm-specific random parameters. We find significant and consistent effects of previous crops on yield levels but not on input uses, suggesting that farmers tend to downplay these effects when deciding on their uses of chemical inputs. Our results also show that crop acreage diversity—which captures crop rotation diversity and, to a lesser extent, spatial crop diversity in our data—positively impacts yield levels and tends to induce reductions in pesticide uses. However, these effects are limited from an economic viewpoint.
{"title":"On the economic value of the agronomic effects of crop diversification for farmers","authors":"Ibirenoye Romaric Sodjahin, Alain Carpentier, Obafèmi Philippe Koutchadé, Fabienne Féménia","doi":"10.1093/erae/jbaf004","DOIUrl":"https://doi.org/10.1093/erae/jbaf004","url":null,"abstract":"We estimate the effects of previous crops and crop acreage diversity on yields and chemical input uses. Our estimation approach relies on models of crop yields and input uses defined as systems of simultaneous equations featuring farm-specific random parameters. We find significant and consistent effects of previous crops on yield levels but not on input uses, suggesting that farmers tend to downplay these effects when deciding on their uses of chemical inputs. Our results also show that crop acreage diversity—which captures crop rotation diversity and, to a lesser extent, spatial crop diversity in our data—positively impacts yield levels and tends to induce reductions in pesticide uses. However, these effects are limited from an economic viewpoint.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"68 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143607791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Livestock productivity is low in Africa, primarily due to feed shortages. We quantify the impacts of the feed shortage experience on livestock and crop production, and its implications on poverty using an instrumental variable approach. Results revealed that the feed shortage experience increased the value of livestock deaths (14 per cent), increased production expenses (77 per cent) and reduced the value of crop production (4 per cent) by reducing investment in modern inputs and increasing the likelihood of livestock being affected by diseases. The income lost due to feed shortages would have lifted 2.57 per cent of affected households out of poverty. Increasing feed availability could, therefore, be pro-poor.
{"title":"Impact of feed shortages on livestock and crop production in Ethiopia: implications for rural poverty reduction","authors":"Gebeyehu Manie Fetene, Zewdu Abro, Tigabu Degu Getahun, Menale Kassie","doi":"10.1093/erae/jbaf006","DOIUrl":"https://doi.org/10.1093/erae/jbaf006","url":null,"abstract":"Livestock productivity is low in Africa, primarily due to feed shortages. We quantify the impacts of the feed shortage experience on livestock and crop production, and its implications on poverty using an instrumental variable approach. Results revealed that the feed shortage experience increased the value of livestock deaths (14 per cent), increased production expenses (77 per cent) and reduced the value of crop production (4 per cent) by reducing investment in modern inputs and increasing the likelihood of livestock being affected by diseases. The income lost due to feed shortages would have lifted 2.57 per cent of affected households out of poverty. Increasing feed availability could, therefore, be pro-poor.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"39 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study examines whether informational nudges effectively enhance adherence to the Fertiliser Act among Japanese fertiliser companies (N = 2,382) by conducting field experiments in collaboration with a national regulatory body. We find that the timely submission of reports to the authority increased by at least 5.7 percentage points, from a baseline of 70.3 per cent. This result suggests that highlighting the consequences of noncompliance—such as imprisonment and fines—through a loss aversion message effectively encourages compliance. These effects sustained for over a year in some regions, though being marginally significant. The loss aversion message has the greatest impact among both the smallest and largest companies.
{"title":"Do informational nudges effectively enhance the legal compliance of fertiliser companies? Lessons from randomised field experiments in Japan","authors":"Hiroki Sasaki, Daisuke Kunii","doi":"10.1093/erae/jbaf005","DOIUrl":"https://doi.org/10.1093/erae/jbaf005","url":null,"abstract":"This study examines whether informational nudges effectively enhance adherence to the Fertiliser Act among Japanese fertiliser companies (N = 2,382) by conducting field experiments in collaboration with a national regulatory body. We find that the timely submission of reports to the authority increased by at least 5.7 percentage points, from a baseline of 70.3 per cent. This result suggests that highlighting the consequences of noncompliance—such as imprisonment and fines—through a loss aversion message effectively encourages compliance. These effects sustained for over a year in some regions, though being marginally significant. The loss aversion message has the greatest impact among both the smallest and largest companies.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"230 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marlene Kionka, Todd Kuethe, Oliver Mußhoff, Matthias Ritter, Martin Odening
There is public concern about the degree to which rising farmland rental rates are driven by the perceived market influence of non-agricultural actors. We conduct a structural estimation to analyse the potential bargaining power of different types of actors in the farmland market. It allows us to infer their latent reservation utilities by exploiting equilibrium conditions, derived from a stochastic ultimatum game. Reservation utilities reflect outside options in negotiations, as they are determinants of bargaining power. We conduct economic experiments in the rental market. Our findings show that farmers and local actors have more bargaining power than non-farmers and absentee actors, respectively.
{"title":"Experimental evidence of bargaining power in agricultural land markets","authors":"Marlene Kionka, Todd Kuethe, Oliver Mußhoff, Matthias Ritter, Martin Odening","doi":"10.1093/erae/jbaf001","DOIUrl":"https://doi.org/10.1093/erae/jbaf001","url":null,"abstract":"There is public concern about the degree to which rising farmland rental rates are driven by the perceived market influence of non-agricultural actors. We conduct a structural estimation to analyse the potential bargaining power of different types of actors in the farmland market. It allows us to infer their latent reservation utilities by exploiting equilibrium conditions, derived from a stochastic ultimatum game. Reservation utilities reflect outside options in negotiations, as they are determinants of bargaining power. We conduct economic experiments in the rental market. Our findings show that farmers and local actors have more bargaining power than non-farmers and absentee actors, respectively.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"79 1 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143071929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the last decade, climate change, Covid-19, and several international conflicts have created significant disruptions to global and regional supply chains, leading to a re-evaluation of the benefits of globalisation. Modelling food trade as network graphs, this study spotlights the effects of these shocks, on the structure, flow and evolution of food supply chains. Network centrality measures show substantial changes in the influence exerted by China, Russia, and the United States, among others. Using machine learning, community detection and global metrics such as clustering further detail the structural changes in the trade network. Differences between systemic and idiosyncratic shocks are also discussed.
{"title":"Friendshoring in global food supply chains","authors":"Savin Khadka, Munisamy Gopinath, Feras A Batarseh","doi":"10.1093/erae/jbae031","DOIUrl":"https://doi.org/10.1093/erae/jbae031","url":null,"abstract":"In the last decade, climate change, Covid-19, and several international conflicts have created significant disruptions to global and regional supply chains, leading to a re-evaluation of the benefits of globalisation. Modelling food trade as network graphs, this study spotlights the effects of these shocks, on the structure, flow and evolution of food supply chains. Network centrality measures show substantial changes in the influence exerted by China, Russia, and the United States, among others. Using machine learning, community detection and global metrics such as clustering further detail the structural changes in the trade network. Differences between systemic and idiosyncratic shocks are also discussed.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"1 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142924961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Farmland prices have been surging worldwide; yet little is known about the particular strong surges in the upper quantiles of price distribution. We investigate by quantile how the composition of the farmland sales and agents’ valuation of land characteristics contribute to these price developments. Using farmland transactions from Brandenburg, Germany, we decompose the price surges between 2008–09 and 2017–18 by combining unconditional quantile regressions with propensity score reweighting. Our results show an increased valuation of land characteristics, e.g. soil quality, and their responsibility for about 25% of the price surges in the upper (>75%) quantiles of price distribution.
{"title":"What moves farmland markets: decomposing the price surge in eastern Germany","authors":"Tim Hainbach, Silke Hüttel, Axel Werwatz","doi":"10.1093/erae/jbae029","DOIUrl":"https://doi.org/10.1093/erae/jbae029","url":null,"abstract":"Farmland prices have been surging worldwide; yet little is known about the particular strong surges in the upper quantiles of price distribution. We investigate by quantile how the composition of the farmland sales and agents’ valuation of land characteristics contribute to these price developments. Using farmland transactions from Brandenburg, Germany, we decompose the price surges between 2008–09 and 2017–18 by combining unconditional quantile regressions with propensity score reweighting. Our results show an increased valuation of land characteristics, e.g. soil quality, and their responsibility for about 25% of the price surges in the upper (>75%) quantiles of price distribution.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"310 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study explores how agrobiodiversity at both local and regional scales impacts farmland value across five Mediterranean countries in the EU. Previous literature has primarily addressed on-farm biodiversity and its effects on productivity and risk mitigation, yet the potential externalities of agrobiodiversity across neighboring farms remain underexplored. Using a cross-sectional Ricardian approach, we estimate the effects of agrobiodiversity, measured in terms of both crop richness and evenness, on long-term agricultural productivity. Our findings show significant non-linear relationships and substitution effects between local and regional agrobiodiversity, underscoring the need for regionally tailored biodiversity policies.
{"title":"What is the value of agrobiodiversity in southern Europe?","authors":"Lea Nicita, Robert Mendelsohn","doi":"10.1093/erae/jbae035","DOIUrl":"https://doi.org/10.1093/erae/jbae035","url":null,"abstract":"This study explores how agrobiodiversity at both local and regional scales impacts farmland value across five Mediterranean countries in the EU. Previous literature has primarily addressed on-farm biodiversity and its effects on productivity and risk mitigation, yet the potential externalities of agrobiodiversity across neighboring farms remain underexplored. Using a cross-sectional Ricardian approach, we estimate the effects of agrobiodiversity, measured in terms of both crop richness and evenness, on long-term agricultural productivity. Our findings show significant non-linear relationships and substitution effects between local and regional agrobiodiversity, underscoring the need for regionally tailored biodiversity policies.","PeriodicalId":50476,"journal":{"name":"European Review of Agricultural Economics","volume":"24 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：