Julia Bronnmann

Julia Bronnmann
University of Southern Denmark | SDU · Department of Sociology, Environmental and Business Economics

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25
Publications
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479
Citations

Publications

Publications (25)
Article
Within the last decades, globalization has changed the international seafood trade, allowing low-income countries to access markets in high-income countries and vice versa. Nevertheless, the effects of globalization are controversial and in particular the impacts on small-scale fishers and local fish traders are unclear. This paper examines the eco...
Article
We develop a bioeconomic model to analyze the long-run supply of fish and find that steady-state supply can have multiple bends in an age-structured setting. We parameterize the model using data for the Eastern stock of Atlantic Bluefin tuna during the predominantly open access period (1950 to 2006). The numerical Bluefin supply curve bends backwar...
Article
In recent years, several studies have identified price premiums for wild seafood certified as sustainably produced. Even though more than half of seafood for human consumption originates from aquaculture, not much attention has been given to consumer preferences for sustainability certified farmed fish, and to the implied price premiums for such pr...
Article
Ecolabels are supposed to reduce the information asymmetry between producers and consumers, but they may also produce a warm glow of “green” behavior. We design discrete choice experiments to measure the relative importance of these motivations for choosing ecolabeled seafood products. We find that choice probability increases if the product carrie...
Article
Full-text available
In a marine multi-species environment, consumers’ decisions may introduce interactions between species beyond biological ecosystem links. The theoretical literature shows that consumer preferences for variety can trigger a sequential (local) extinction of fish stocks. However, consumer preferences are not yet fully understood empirically, as it is...
Article
In recent years, several studies have identified price premiums for wild seafood certified as sustainably produced. Even though more than half of seafood for human consumption originates from aquaculture, not much attention has been given to consumer preferences for sustainability certified farmed fish, and to the implied price premiums for such pr...
Article
In a marine multi-species environment, consumers' decisions may introduce interactions between species beyond biological ecosystem links. The theoretical literature shows that consumer preferences for variety can trigger a sequential collapse of fish stocks. However, consumer preferences are not yet fully understood empirically: It is uncertain how...
Article
Popularity of sustainably produced food products has grown rapidly in recent years. Ecolabels are used to indicate the environmental sustainability of products and have been implemented in the seafood market, with the leading ecolabel being that of the Marine Stewardship Council (MSC) for wild fish. However, the effect of ecolabels in consumer deci...
Article
Full-text available
Evidence of market integration between farmed pangasius and wild-caught whitefish is provided in the literature, pointing towards pangasius prices being determined on the large international whitefish market. In the presence of price transmission in the value chain, global growth of pangasius farming does therefore not in itself reduce the farm-gat...
Article
Full-text available
The wide range of benefits for humans and biodiversity conservation provided by urban green spaces (UGS) are receiving substantial attention in relation to urban planning and management. However, little is known about to which extent people value the naturalness and biodiversity of urban green spaces. We study how citizens value the naturalness of...
Article
Full-text available
This paper investigates the performance of the Quadratic Almost Ideal Demand System (QUAIDS) with and without accounting for the consistent two-step estimation for censoring of the dependent variable as well as the use of quality-adjusted prices. The demand systems are estimated for a commodity that has a relatively low consumption level in the Ger...
Article
Full-text available
Product differentiation is an important tool to target different consumer groups and to generate price premiums for different commodities. Product differentiation affects the level of competition, consumer costs and can alter the dynamics of cost pass-through. In this study, we focus on the natural differences in nutritional levels (omega-3, fats,...
Article
This paper investigates the vertical price transmission among import and retail markets for cod and herring. Monthly data is used for the period January 2012 until December 2016. The nonlinear ARDL approach is applied in order to find short-run and long-run asymmetries in the German cod and herring market. Considerable heterogeneity in short-run ad...
Article
Germany is Europe’s largest market for carbonated soft drinks. In 2015, the average per capita consumption of carbonated soft drinks reached 119 L. Furthermore, the market is highly differentiated. This study uses a unique household panel data set of carbonated soft drink consumption in Germany to determine the effect of product and household chara...
Article
This paper investigates the importance of different attributes, including farmed and wild caught, and non ecolabeled and ecolabeled, for turbot in the German market as well as consumers’ willingness to pay for specific attributes. The empirical analysis is based upon discrete choice experiments with 485 participants from northern Germany. A mixed l...
Article
In this paper the price dynamics and the degree of market integration in the German crustaceans market is examined usingcointegration methods. Thestudy focusesonwildcaughtcold watershrimp, farmedwarm water shrimp as well as lobster and derives implications for the fisheries sector. In the analysis, both the import market and the retail market price...
Article
In this study, we apply a hedonic pricing model to a unique data set of the German carbonated soft drink market. We distinguish between traditional brands and private label brands and include a variety of product attributes such as flavour, sugar content and bottle size in our analysis. Our results show that most traditional brands yield highest pr...
Article
Whether ecolabelled seafood actually provides incentives to improve the management of fisheries remains a controversial issue. A number of stated preference studies indicate a substantial willingness to pay for ecolabelled seafood. Early evidence from actual market data supports the existence of a premium, while more recent papers provide a more nu...
Article
There is an increasing focus on environmentally sustainable seafood, which creates a potential for segmentation in the seafood market. Several recent studies demonstrate that consumers prefer ecolabeled wild seafood over unlabeled seafood. In addition, there is increasing evidence of a preference for wild fish relative to farmed fish, despite the r...
Article
There is an increasing focus on environmentally sustainable seafood, which creates a potential for segmentation in the seafood market. Several recent studies demonstrate that consumers prefer ecolabeled wild seafood over unlabeled seafood. In addition, there is increasing evidence of a preference for wild fish relative to farmed fish, despite the r...
Article
This study examines the degree of price transmission in the German Alaska pollock, cod and salmon value chains. Moreover, in addition to aggregated market prices used in most studies, access to prices by retailer type allows investigation of different adjustment patterns by value chain. Using monthly average prices, the Johansen and consistent thre...
Article
Whitefish is one of the largest segments in the global seafood market. The whitefish market includes traditional wild-caught species; cod, pollock and Alaska pollock, and the more recent introduction of aquaculture species; pangasius and tilapia. This study specifically addresses price elasticity estimates for wild and aquacultured whitefish o...
Article
Following decade-long growth in worldwide farming of pangasius and tilapia, imports to Germany, a main European market, have been reduced since 2010. One reason for this might be supply growth of wild species at the total German whitefish market, if market integration exists between farmed and wild-caught whitefish. This article examines market int...
Article
The production of farmed fish is growing rapidly and presents a sustainable and possibly low-cost alternative to wild fish. Thus, we may expect retail prices of farmed to be lower than prices of wild fish and demand to be less elastic. Otherwise, marketing of farmed fish may generate some extra value that justifies higher prices and may exhibit mor...
Article
It is well known that the price of a food in general and fish in particular is a function of a number of attributes such as species, product form, processing form and size. However, limited attention has been given to the influence of private labels, production method, eco-labels and promotions. We use a unique dataset which identifies these attrib...

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Projects

Projects (2)
Project
The Humboldt current with its upwelling system at the Pacific coast of South America is a highly productive ecosystem in which not only around 9 million tons of fish and other seafood are caught every year but is also a hotspot of marine biodiversity. The system is subject to significant changes due to climatic, ecosystem and anthropogenic fluctuations that occur at different time scales (seasonal, annual, decadal and centennial) in addition to the increasingly visible effects of climate change. Based on a variety of modelling efforts and the knowledge of key actors, we will explore possible adaptation measures and derive recommendations on governance in order to reduce the risk of tipping point impacts on the regional economy and increase the resilience of Peru's coastal communities. For more information, see https://humboldt-tipping.org/de
Project
This project aimed to develop and operationalized a social-ecological system (SES) for the Western Baltic Sea ecoregion. We first aim to understand the drivers of the system tipping points. Then, a management strategy evaluation, with, ultimately, the goal of tipping the social-ecological system into a new sustainable state, may be carried out. This project pilot phase (1 year) was funded by the German state (Biotip call) and a full proposal will be submitted next year.