floriakd

• Diekert, Florian Klaus; Li, Yuanhao; Nøstbakken, Linda & Richter, Andries Peter (2026). Compliance, environmental regulation, and quota markets. Journal of Environmental Economics and Management. ISSN 0095-0696. 138. doi: 10.1016/j.jeem.2026.103345. Full text in Research Archive Show summary

  Market-based instruments are widely promoted for their efficiency in achieving environmental goals, but their effectiveness depends on enforcement and compliance, which are often imperfect. We develop a theoretical model in which agents face both technological standards and quota regulations, with the possibility of non-compliance with both at the risk of fines. Within this model, we investigate how intrinsic motivation to comply with different regulations affects investment behavior in quota markets. We find that a greater willingness to invest in quotas can result from either a strong intrinsic motivation to comply with quota regulations or a weak motivation to comply with technological standards. To test these predictions, we use survey data and incentivized economic experiments with Norwegian fishers. The empirical results confirm the theory predictions: Fishers who find technological violations less acceptable tend to invest less in quotas, while those who disapprove of quota violations tend to buy more quotas. These findings highlight the critical role of compliance attitudes for quota market behavior and offer insights for designing more efficient environmental

• Abe, Keita; Diekert, Florian Klaus; Melsom, Arne & Langangen, Øystein Ole Gahr (2024). Do fishers follow fish displaced by climate warming? npj Ocean Sustainability. 3(1), p. 1–7. doi: 10.1038/s44183-024-00063-9. Full text in Research Archive Show summary

  Climate change is associated with altered oceanographic conditions that tend to shift the geographical distributions of fish. To assess the impact of climate change on fisheries, one must go beyond projections of catch potential and understand how fishers respond to moving target species. Many previous studies have explicitly or implicitly assumed that fishers follow fish that are displaced by climate warming. Here, we evaluate this assumption by analyzing a long-term, large-scale yet high-resolution dataset combined with a detailed oceanographic model. Our study case is the Atlantic cod (Gadhus morhua) fishery in Norway, one of the largest whitefish fisheries in the world, with little technological or judicial constraints on the potential spatial response of fishers. An oceanographic model is used to predict the areas that have been suitable for Atlantic cod spawning over the two last decades. We compare whether these areas overlap with actually observed fishing locations. While the areas that are suitable for spawning clearly predict how much fish are caught per trip, the suitability of an area does not predict how many vessels fish in a given area at a given point in time. In contrast, the number of vessels in the previous week and the previous year explain the current number of vessels in that area. Hence, future projections of climate change effects should account for the rich and nuanced behavioral responses of humans to project climate change effects on fisheries.

• Diekert, Florian Klaus & Schaap, Robbert-Jan (2024). Does nature shape risk preferences? Evidence from Chile, Norway, and Tanzania. Economic Inquiry. ISSN 0095-2583. p. 1–23. doi: 10.1111/ecin.13272. Full text in Research Archive Show summary

  Does exposure to a more risky environment affect risk preferences? Going beyond single-case study evidence, we report results from five surveys conducted in three countries and link this with administrative data to study whether a link between exposure and preferences is detectable and widespread. We find no evidence for endogenous preferences in Norway and Tanzania, but relatively strong evidence in Chile, where differences in risk exposure are most pronounced. Moreover, we make a first pass at disentangling selection from adaptation as potential mechanisms. For Tanzania and Norway, the data speaks for selection, while it speaks for adaptation in Chile.

• Schaap, Robbert-Jan; Gonzalez-Poblete, Exequiel; Aedo, Karin Loreto Silva & Diekert, Florian Klaus (2024). Risk, restrictive quotas, and income smoothing. Ecological Economics. ISSN 0921-8009. 225. doi: 10.1016/j.ecolecon.2024.108319. Full text in Research Archive Show summary

  Income shocks due to environmental variability, climatic events or overexploitation can result in severe hardships for natural resource users which are unable to smooth consumption. Artisanal fishers in Chile vary in their ability to smooth consumption due to regulatory differences. Utilizing these regulatory differences, we find that survey participants that harvest species which are governed by restrictive quotas have preferences for more precautionary savings compared to survey participants whose harvest is not restricted. The inability to adjust harvest increases the importance of self-insurance through saving. Especially in developing countries, where formal saving opportunities are limited, policies that aim at stabilizing resource productivity through restrictive quotas need to account for available consumption smoothing strategies to avoid unintended welfare losses.

• Diekert, Florian Klaus; Li, Yuanhao; Nøstbakken, Linda & Richter, Andries Peter (2023). Why do fishermen comply with regulations? The role of preferences. In Bucciol, Alessandro; Tavoni, Alessandro & Veronesi, Marcella (Ed.), Behavioural Economics and the Environment. A Research Companion. Routledge. ISSN 9781032003535. p. 83–106. doi: 10.4324/9781003172741-6. Full text in Research Archive
• Nkuiya, Bruno & Diekert, Florian Klaus (2023). Stochastic growth and regime shift risk in renewable resource management. Ecological Economics. ISSN 0921-8009. 208, p. 1–11. doi: 10.1016/j.ecolecon.2023.107793. Full text in Research Archive
• Diekert, Florian Klaus; Munzinger, Stefan; Schulemann-Maier, Gaby & Städtler, Laura (2023). Explicit incentives increase citizen science recordings. Conservation Letters. 16(5). doi: 10.1111/conl.12973. Full text in Research Archive Show summary

  Abstract From tracking land‐use change to biodiversity loss, citizen science data have become a cornerstone for conservation. However, policymakers must understand the “data‐generating process” to make good use of existing citizen science data and encourage the production of useful new data. We analyze data from the two largest German online platforms for ecological observations to explore and quantify the effect of explicit incentives on volunteer recordings, created by a large‐scale prize competition on one of the platforms. We find 10% more recordings during the prize competition. Moreover, the effects of weather and weekends are attenuated during the competition period. Finally, the diversity of recorded species decreases. Our study shows the first statistical evidence that using explicit incentives increases the quantity of citizen science data. It highlights the need to further study the effect of explicit incentives on data quality and the engagement of citizens for conservation.

• Diekert, Florian Klaus; Eymess, Tillmann; Luomba, Joseph & Waichman, Israel (2022). The Creation of Social Norms under Weak Institutions. Journal of the Association of Environmental and Resource Economists. ISSN 2333-5955. 9(6), p. 1127–1160. doi: 10.1086/720287. Full text in Research Archive Show summary

  Formal regulations often fail to ensure sustainable management of natural resources. An alternative approach could rely on the interaction of norm-based interventions and social sanctions. Our lab-in-the-field experiment with fishermen at Lake Victoria studies how a norm-based intervention, namely, social information about high or low levels of previous cooperation, affects behavior and beliefs in a prisoner’s dilemma game with or without weak social sanctioning. Providing different social information succeeds in creating different norms of cooperation, but only if sanctioning is possible: cooperation rates start at a high level and stay at a high level when social information emphasizes cooperation but start at a low level and stay at a low level when social information emphasizes defection. Without social sanctioning, cooperation rates decline, irrespective of the social information. Particularly participants with close connection to others in their experimental session conform to the behavior that is emphasized by the social information message under sanctioning.

• Diekert, Florian Klaus & Brekke, Kjell Arne (2021). Groups discipline resource use under scarcity. Theory and Decision. ISSN 0040-5833. 92, p. 75–103. doi: 10.1007/s11238-021-09813-4. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2021). Control activities and compliance behavior—Survey evidence from Norway. Marine Policy. ISSN 0308-597X. 125. doi: 10.1016/j.marpol.2020.104381. Full text in Research Archive Show summary

  Successful fisheries management relies on compliance. Compliance in turn relies on the perceived legitimacy of the existing rules and regulations, the effectiveness of monitoring and enforcement, and on the positive feedback loop between legitimacy and effectiveness. Against the backdrop of increasing incentives to violate rules and regulations in modern fisheries, there are concerns that traditional control activities relying on physical inspections, are no longer effective in safeguarding sustainability. Modern control activities, which make use of new technologies, such as camera surveillance on vessels, remote monitoring (drones, planes, satellites) and real-time monitoring of catches with automated data recording, may offer a promising alternative to enforcement officers conducting physical inspections. This paper presents evidence from a large-scale survey among Norwegian fishers, investigating (i) attitudes towards traditional and modern control activities, and (ii) how expectations about and experiences of physical inspections affect compliance behavior. We also investigate the role of individual factors on compliance, such as risk aversion, which we measure with an economic experiment. While we cannot document an effect of risk aversion on compliance behavior, we find that having experienced more controls in the past and perceiving the likelihood of future control as higher, significantly reduce rule violations. We also find that survey respondents appreciate traditional enforcement measures, while they have mixed attitudes towards modern control activities.

• Stoeven, Max T.; Diekert, Florian Klaus & Quaas, Martin (2021). Should fishing quotas be measured in terms of numbers? Marine Resource Economics. ISSN 0738-1360. 36(2), p. 133–153. doi: 10.1086/713437. Full text in Research Archive
• Langangen, Øystein; Färber, Leonie Anette; Stige, Leif Christian; Diekert, Florian Klaus; Barth, Julia Maria Isis & Matschiner, Michael [Show all 11 contributors for this article] (2018). Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod. Global Change Biology. ISSN 1354-1013. 25(1), p. 134–143. doi: 10.1111/gcb.14474. Full text in Research Archive Show summary

  Climate warming and harvesting affect the dynamics of species across the globe through a multitude of mechanisms, including distribution changes. In fish, migrations to and distribution on spawning grounds are likely influenced by both climate warming and harvesting. The Northeast Arctic (NEA) cod (Gadus morhua) performs seasonal migrations from its feeding grounds in the Barents Sea to spawning grounds along the Norwegian coast. The distribution of cod between the spawning grounds has historically changed at decadal scales, mainly due to variable use of the northern and southern margins of the spawning area. Based on historical landing records, two major hypotheses have been put forward to explain these changes: climate and harvesting. Climate could affect the distribution through, for example, spatial habitat shifts. Harvesting could affect the distribution through impacting the demographic structure. If demographic structure is important, theory predicts increasing spawner size with migration distance. Here, we evaluate these hypotheses with modern data from a period (2000–2016) of increasing temperature and recovering stock structure. We first analyze economic data from the Norwegian fisheries to investigate geographical differences in size of spawning fish among spawning grounds, as well as interannual differences in mean latitude of spawning in relation to changes in temperature and demographic parameters. Second, we analyze genetically determined fish sampled at the spawning grounds to unambiguously separate between migratory NEA cod and potentially smaller sized coastal cod of local origin. Our results indicate smaller spawners farther away from the feeding grounds, hence not supporting the hypothesis that harvesting is a main driver for the contemporary spawning ground distribution. We find a positive correlation between annual mean spawning latitude and temperature. In conclusion, based on contemporary data, there is more support for climate compared to harvesting in shaping spawning ground distribution in this major fish stock in the North Atlantic Ocean.

• Diekert, Florian Klaus & Nieminen, Emmi (2017). International Fisheries Agreements with a Shifting Stock. Dynamic Games and Applications. ISSN 2153-0785. 7(2), p. 185–211. doi: 10.1007/s13235-016-0184-4. Full text in Research Archive Show summary

  When a fish stock shifts from one nation to another nation, e.g., due to climate change, the nation that loses the resource has incentives to deplete it, while the other nation, receiving the resource, has incentives to conserve it. We propose an analytical model to study under which circumstances self-enforcing agreements can align incentives. Our setup allows to distinguish between a fast and a slow shift and between a smooth or a sudden shift in ownership. We show that the shorter the expected duration of the transition, the higher the total equilibrium exploitation rate. Similarly, a sudden shift implies—by and large—more aggressive non-cooperative exploitation than a gradual shift. However, a self-enforcing agreement without side-payments is more likely for a sudden than for a smooth shift. Further, the scope for cooperation increases with the expected duration of the transition, and it decreases with the renewability of the resource and the discount rate. Most importantly, we show that concentrating on in-kind transfers can be very detrimental for shifting renewable resources: In some cases, there is no efficient bargaining solution without side-payments, even when there are only two players. The final version of this research has been published in Dynamic Games and Applications. © 2017 Springer Verlag

• Diekert, Florian Klaus & Schweder, Tore (2017). Disentangling Effects of Policy Reform and Environmental Changes in the Norwegian Coastal Fishery for Cod. Land Economics. ISSN 0023-7639. 93(4), p. 689–709. doi: 10.3368/le.93.4.689. Full text in Research Archive Show summary

  We construct a detailed bioeconomic model of the Norwegian coastal cod fishery. This fishery has been open access up to the policy change during the “cod crisis” of 1989/1990. To answer to what extent the subsequent increase in biomass and profits was due to improved management, we isolate the effect of environmental variability. Projecting stock and harvest forward in the counterfactual scenario of no intervention, we show that the policy had a small positive impact on biomass, but a pronounced positive effect on profits. The main drivers of profit gains are increases in productivity and savings in fuel and labor costs.

• Richter, Andries Peter; Eikeset, Anne Maria; Soest, Daan Van; Diekert, Florian Klaus & Stenseth, Nils Christian (2017). Optimal management under institutional constraints: determining a total allowable catch for different fleet segments in the Northeast Arctic cod fishery. Environmental and Resource Economics. ISSN 0924-6460. 69(4), p. 811–835. doi: 10.1007/s10640-016-0106-3. Full text in Research Archive
• Holt, Rebecca Emma; Woods, P.J; Ferreira, A.S.A; Bardarson, H; Bonanomi, Sara & Boonstra, W.J [Show all 25 contributors for this article] (2017). Avoiding pitfalls in interdisciplinary education. Climate Research (CR). ISSN 0936-577X. 74(2), p. 121–129. doi: 10.3354/cr01491. Full text in Research Archive
• Diekert, Florian Klaus (2017). Threatening thresholds? The effect of disastrous regime shifts on the non-cooperative use of environmental goods and services. Journal of Public Economics. ISSN 0047-2727. 147, p. 30–49. doi: 10.1016/j.jpubeco.2017.01.004. Full text in Research Archive Show summary

  This paper presents a tractable dynamic game in which agents jointly use a resource. The resource replenishes fully but collapses irreversibly if the total use exceeds a threshold. The threshold is assumed to be constant, but its location may be unknown. Consequently, an experiment to increase the level of safe resource use will only reveal whether the threshold has been crossed or not. If the consequence of crossing the threshold is disastrous (i.e., independent of how far the threshold has been exceeded), it is individually and socially optimal to update beliefs about the threshold's location at most once. The threat of a disastrous regime thereby facilitates coordination on a “cautious equilibrium”. If the initial safe level is sufficiently valuable, the equilibrium implies no experimentation and coincides with the first-best resource use. The less valuable the initial safe value, the more the agents will experiment. For sufficiently low initial values, immediate depletion of the resource is the only equilibrium. When the regime shift is not disastrous, but the damage depends on how far threshold has been exceeded, experimentation may be gradual.

• Pedersen, Martin Wæver; Kokkalis, Alexandros; Bardarson, Hermann; Bonanomi, Sara; Boonstra, Wiebren & Butler, William E. [Show all 23 contributors for this article] (2016). Trends in marine climate change research in the Nordic region since the first IPCC report. Climatic Change. ISSN 0165-0009. 134(1), p. 147–161. doi: 10.1007/s10584-015-1536-6. Full text in Research Archive
• Diekert, Florian Klaus; Richter, Andries Peter; Rivrud, Inger Maren & Mysterud, Atle (2016). How constraints affect the hunter's decision to shoot a deer. Proceedings of the National Academy of Sciences of the United States of America (PNAS). ISSN 0027-8424. 113(50), p. 14450–14455. doi: 10.1073/pnas.1607685113. Full text in Research Archive
• Burgess, Matthew G.; Diekert, Florian Klaus; Jacobsen, Nis S.; Andersen, Ken Haste & Gaines, Steven D. (2015). Remaining questions in the case for balanced harvesting. Fish and Fisheries. ISSN 1467-2960. 17(4), p. 1216–1226. doi: 10.1111/faf.12123. Full text in Research Archive
• Boonstra, Wiebren; Ottosen, Katharina M.; Ferreira, Ana Sofia de Araújo; Richter, Andries Peter; Rogers, Lauren & Pedersen, Martin Wæver [Show all 24 contributors for this article] (2015). What are the major global threats and impacts in marine environments? Investigating the contours of a shared perception among marine scientists from the bottom-up. Marine Policy. ISSN 0308-597X. 60, p. 197–201. doi: 10.1016/j.marpol.2015.06.007. Full text in Research Archive
• Norström, Albert V; Dannenberg, Astrid; McCarney, Geoff; Milkoreit, Manjana; Diekert, Florian Klaus & Engström, Gustav [Show all 17 contributors for this article] (2014). Three necessary conditions for establishing effective Sustainable Development Goals in the Anthropocene. Ecology & Society. 19(3). doi: 10.5751/ES-06602-190308. Full text in Research Archive
• Diekert, Florian Klaus (2013). The growing value of age: exploring economic gains from age-specific harvesting in the Northeast Arctic cod fishery. Canadian Journal of Fisheries and Aquatic Sciences. ISSN 0706-652X. 70(9), p. 1346–1358. doi: 10.1139/cjfas-2012-0471. Full text in Research Archive
• Diekert, Florian Klaus (2012). Growth Overfishing: The Race to Fish Extends to the Dimension of Size. Environmental and Resource Economics. ISSN 0924-6460. 52(4), p. 549–572. doi: 10.1007/s10640-012-9542-x. Full text in Research Archive
• Diekert, Florian Klaus (2012). The Tragedy of the Commons from a Game-Theoretic Perspective. Sustainability. 4(8), p. 1776–1786. doi: 10.3390/su4081776. Full text in Research Archive
• Eikeset, Anne Marie; Richter, Andries Peter; Diekert, Florian Klaus; Dankel, Dorothy Jane & Stenseth, Nils Christian (2011). Unintended consequences sneak in the back door: making wise use of regulations in fisheries management. In Belgrano, Andrea & Fowler, Charles (Ed.), Ecosystem Based Management for Marine Fisheries: An Evolving Perspective. Cambridge Academic. ISSN 9780521519816. p. 181–217. doi: 10.1017/cbo9780511973956.009. Full text in Research Archive
• Diekert, Florian Klaus; Hjermann, Dag Øystein; Nævdal, Eric & Stenseth, Nils Christian (2010). Non-cooperative exploitation of multi-cohort fisheries-The role of gear selectivity in the North-East Arctic cod fishery. Resource and Energy Economics. ISSN 0928-7655. 32(1), p. 78–92. doi: 10.1016/j.reseneeco.2009.09.002. Full text in Research Archive
• Diekert, Florian Klaus; Eikeset, Anne Marie & Stenseth, Nils Christian (2010). Where could catch shares prevent stock collapse? Marine Policy. ISSN 0308-597X. 34(3), p. 710–712. doi: 10.1016/j.marpol.2009.09.006. Full text in Research Archive
• Diekert, Florian Klaus; Hjermann, Dag Øystein; Nævdal, Eric & Stenseth, Nils Christian (2010). Spare the Young Fish: Optimal Harvesting Policies for North-East Arctic Cod. Environmental and Resource Economics. ISSN 0924-6460. 47(4), p. 455–475. doi: 10.1007/s10640-010-9388-z. Full text in Research Archive

View all works in NVA

• Diekert, Florian Klaus; Li, Yuanhao; Nøstbakken, Linda & Richter, Andries Peter (2026). Compliance, environmental regulation, and quota markets. Full text in Research Archive
• Diekert, Florian Klaus; Li, Yuanhao; Nøstbakken, Linda & Richter, Andries Peter (2024). How non-compliance behavior affects investments in fishing quota and capital. Full text in Research Archive
• Abe, Keita; Diekert, Florian Klaus; Melsom, Arne & Langangen, Øystein Ole Gahr (2024). Author Correction: Do fishers follow fish displaced by climate warming? npj Ocean Sustainability. 3(1). doi: 10.1038/s44183-024-00066-6. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2023). Behavior, compliance and attitudes to digital and traditional control methods. Full text in Research Archive
• Diekert, Florian Klaus; Li, Yuanhao; Nøstbakken, Linda & Richter, Andries Peter (2023). Non-compliance behavior and use of extraction rights for natural resources. Full text in Research Archive
• Nøstbakken, Linda; Diekert, Florian Klaus; Li, Yuanhao & Richter, Andries Peter (2023). Non-compliance behavior, investment and use of extraction rights for natural resources. Full text in Research Archive
• Richter, Andries Peter; Diekert, Florian Klaus; Nøstbakken, Linda & Li, Yuanhao (2022). Behavioral motives of investments in catch-share managed fisheries. Full text in Research Archive
• Diekert, Florian Klaus; Nesje, Frikk; Heyen, Daniel & Shayegh, Soheil (2022). Early warning of tipping points improves management but may encourage risk-taking. Full text in Research Archive
• Diekert, Florian Klaus; Richter, Andries Peter & Nøstbakken, Linda (2022). Modern Compliance Policies in Fisheries. Full text in Research Archive
• Diekert, Florian Klaus & Schaap, Robbert (2022). Does nature shape economic preferences? Evidence from Chile, Norway and Tanzania. Full text in Research Archive
• Diekert, Florian Klaus; Li, Yuanhao; Nøstbakken, Linda & Richter, Andries Peter (2022). Non-compliance behavior and use of extraction rights for natural resources. Full text in Research Archive
• Diekert, Florian Klaus & Schaap, Robbert-Jan (2021). Does nature shape risk- and social preferences? Evidence from Chile, Norway, and Tanzania. Full text in Research Archive
• Diekert, Florian Klaus & Brekke, Kjell Arne (2019). Groups discipline resource use under scarcity. Full text in Research Archive
• Diekert, Florian Klaus; Goeschl, Timo & König, Christian (2019). The Nature of Experience. Full text in Research Archive
• Stoeven, Max; Diekert, Florian Klaus & Quaas, Martin (2018). Deregulating fishing gear choice: A comparison of number and biomass quotas. Full text in Research Archive
• Diekert, Florian Klaus; Li, Yuanhao; Nøstbakken, Linda & Richter, Andries Peter (2018). Non-compliance behavior and use of extraction rights for natural resources. Full text in Research Archive
• Diekert, Florian Klaus; Stoeven, Max & Quaas, Martin (2018). Deregulating fishing gear choice: A comparison of number and biomass quotas. Full text in Research Archive
• Richter, Andries Peter; Diekert, Florian Klaus; Nøstbakken, Linda & Li, Yuanhao (2017). Why do fishermen comply with regulations? The role of preferences. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda; Richter, Andries Peter & Li, Yuanhao (2017). Behavioural determinants of compliance decisions in Norwegian fisheries. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda; Richter, Andries Peter & Li, Yuanhao (2017). Behavioural determinants of investment and compliance decisions in Norwegian fisheries. Full text in Research Archive
• Diekert, Florian Klaus; Eikeset, Anne Maria; Romagnoni, Giovanni & Lindroos, Marko (2017). Population specific vs undifferentiated management of North Sea cod: A bioeconomic analysis of population specific vs undifferentiated management in a changing climate: North Sea cod as a case study. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2017). Why do fishermen comply with regulations? Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2017). Why do fishermen comply with regulations? The role of preferences. Full text in Research Archive
• Li, Yuanhao; Nøstbakken, Linda; Diekert, Florian Klaus & Richter, Andries Peter (2017). Behavioral drivers of investments in catch-share managed fisheries. Full text in Research Archive
• Diekert, Florian Klaus; Langangen, Øystein; Färber, Leonie Anette; Stige, Leif Christian & Durant, Joel Marcel (2016). Ticket to Spawn – Using economic data to shed light on biological hypothesis. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda; Richter, Andries Peter & Skjeret, Frode Andre (2016). Risk and Risk Exposure in Norwegian Fisheries. Full text in Research Archive
• Färber, Leonie Anette; Stige, Leif Christian; Durant, Joel Marcel; Diekert, Florian Klaus & Langangen, Øystein (2016). Ticket to Spawn – Using economic data to shed light on biological hypothesis. Full text in Research Archive
• Li, Yuanhao; Nøstbakken, Linda; Diekert, Florian Klaus & Richter, Andries Peter (2016). The impact of risk, time, and social preferences on individual investment decisions in a fishery. Full text in Research Archive Show summary

  Excess and over capacity are key management issues in global fisheries. These issues have also received widespread attention in the literature. Previous work on firm-level investment behavior in fisheries, both theoretical and empirical, typically assumes risk neutral and profit maximizing agents. While this work has led to a much better understanding of the dynamics of investments and capacity both at the firm and the industry level, there is firm-level variation in observed behavior that has yet to be fully explained (see e.g. Nøstbakken, 2012). In this paper, we analyze individual investment behavior in the fishing industry. We use data from a combined web-based experiment and survey of Norwegian fishers conducted in the spring of 2014 to analyze this empirically. In the economic experiment, the participants won real money in a set of lotteries based on their answers and lottery outcomes. Based on their lottery choices, we derive measures of various individual preferences, including time, risk, and social preferences. We combine these preference measures with the fishers’ survey responses related to investment decisions made in the last six years, to conduct our empirical analysis. Differences in preferences across owners of fishing firms, which are typically unobservable, can potentially explain a large share of the observed variation in investment behavior found in previous studies. Extending the investment model also has important policy implications as it enables us to predict better the implications of various policies, and to take a step beyond what we can derive from the standard theoretical economic models.

• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2016). Why do fishermen comply with regulations? The role of preferences. Full text in Research Archive
• Gokhale, Sanmitra; Richter, Andries Peter; Nøstbakken, Linda & Diekert, Florian Klaus (2016). Understanding financial risk for fishers and the role of diversification. Full text in Research Archive Show summary

  Fishers’ risk management strategies are so far poorly understood. They face high income variability due to fluctuations in market price and catches of fish. One of the ways to mitigate this risk, has been to construct portfolios of quota whose revenues are either uncorrelated or negatively correlated with each other. This has made taking a portfolio approach to fisheries more popular. This research will empirically analyse the diversity of revenues of fishers’ using Norwegian fisheries data. Using a diversity index, we will look at whether there are any longer term trends in diversification and differences in diversification between pelagic and demersal fishers. Further, we analyse whether diversification differs between vessel groups (which is based on vessel length) and depends on the home port of a vessel. This research speaks to the current financial risk management behaviour of fishers as well as their risk profile, and can provide insights into better risk management methods for fishers going forward. It also has policy implications, as some quota systems encourage specialization (such as, regulations limiting who can participate in a fishery), which can be harmful for the long term financial well-being of the fishers’ as well as the local economy at large.

• Richter, Andries Peter; Nøstbakken, Linda & Diekert, Florian Klaus (2016). Using behavioral experiments to understand preferences with regard to risk, patience, and cooperation in Norwegian fisheries. Full text in Research Archive
• Li, Yuanhao; Nøstbakken, Linda; Diekert, Florian Klaus & Richter, Andries Peter (2016). Behavioral drivers of investments in catch-share managed fisheries. Full text in Research Archive
• Li, Yuanhao; Nøstbakken, Linda; Richter, Andries Peter & Diekert, Florian Klaus (2016). Behavioral drivers of investments in catch-share managed fisheries. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2015). Why do fishermen comply with regulations? The role of preferences. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2015). Why do fishermen comply with regulations? The role of preferences. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2015). Why do fishermen comply with regulations? The role of preferences. Full text in Research Archive
• Romagnoni, Giovanni; Diekert, Florian Klaus; Eikeset, Anne Maria & Lindroos, F. (2015). Exploring population-specific management for North Sea cod meta-population. Full text in Research Archive
• Diekert, Florian Klaus; Rivrud, Inger Maren; Mysterud, Atle & Richter, Andries Peter (2015). Hunting:How social institutions shape selection pressure. Full text in Research Archive
• Diekert, Florian Klaus & Nieminen, Emmi Elina (2015). International fisheries agreements with a shifting stock. Full text in Research Archive
• Diekert, Florian Klaus & Richter, Andries Peter (2015). Stabilizing and de-stabilizing effects of multi-species interactions above and beneath the sea-surface. Full text in Research Archive
• Diekert, Florian Klaus (2015). Threatening Thresholds? The effect of potential regime shifts on the cooperative and non-cooperative use of environmental goods and services. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2015). Risk and Risk Exposure in Norwegian Fisheries. Full text in Research Archive
• Diekert, Florian Klaus (2014). Stabilizing and de-stabilizing effects of multi-species interactions above and beneath the sea-surface. Full text in Research Archive
• Diekert, Florian Klaus (2014). From Open Access to Individual Quotas. Full text in Research Archive
• Diekert, Florian Klaus (2014). Threatening Thresholds. Full text in Research Archive
• Diekert, Florian Klaus (2014). Threatening Thresholds. Full text in Research Archive
• Romagnoni, Giovanni; Diekert, Florian Klaus; Lindroos, Marko & Eikeset, Anne Maria (2014). Spatial management strategies for populations of cod (Gadus morhua) in the North Sea. Full text in Research Archive
• Diekert, Florian Klaus (2013). From Open Access to Individual Quotas. Full text in Research Archive
• Diekert, Florian Klaus (2013). The growing value of age: Exploring economic gains from age-specific harvesting. Full text in Research Archive
• Diekert, Florian Klaus (2013). From Open Access to Individual Quotas. Full text in Research Archive
• Diekert, Florian Klaus (2012). Estimates of economic gains from better management depend strongly on the biological modeling assumptions and the selectivity pattern. Full text in Research Archive
• Diekert, Florian Klaus (2012). Hunting: How social institutions shape selection pattern. Full text in Research Archive
• Diekert, Florian Klaus (2010). Growth Overfishing. Full text in Research Archive
• Diekert, Florian Klaus; Eikeset, Anne Marie; Hjermann, Dag Øystein & Stenseth, Nils Christian (2010). Utvid maskevidden. Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116. 3, p. 7–7. Full text in Research Archive
• Diekert, Florian Klaus (2009). The importance of considering age-structure for successful ITQ management. Full text in Research Archive
• Diekert, Florian Klaus (2009). Target the right fish! The importance of gear selectivity as a control variable. Full text in Research Archive
• Diekert, Florian Klaus (2009). Catch shares do not prevent growth overfishing. Full text in Research Archive
• Diekert, Florian Klaus & Nævdal, Eric (2009). NRK Morgennytt. [TV]. Oslo. Full text in Research Archive
• Diekert, Florian Klaus (2008). Strategic Constraints on the optimal management of the North-East Arctic cod fishery. Full text in Research Archive
• Diekert, Florian Klaus (2008). STRATEGIC CONSTRAINTS ON OPTIMAL MANAGEMENT OF THE NORTH-EAST ARCTIC COD FISHERY. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2020). Modern Compliance Policies in Fisheries. Samfunns- og næringslivsforskning. Full text in Research Archive
• Richter, Andries Peter; Eikeset, Anne Maria; Soest, Daan Van; Diekert, Florian Klaus & Stenseth, Nils Christian (2016). Optimal management under institutional constraints – Determining a total allowable catch for different fleet segments in the North East Arctic cod fishery. revised & resubmitted to Environmental & Resource Economics. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda; Richter, Andries Peter & Skjeret, Frode Andre (2015). Risk and Risk Exposure in Norwegian Fisheries. Samfunns- og næringslivsforskning. Full text in Research Archive
• Diekert, Florian Klaus; Nøstbakken, Linda & Richter, Andries Peter (2015). Why do fishermen comply with regulations? The role of preferences. Samfunns- og næringslivsforskning. Full text in Research Archive
• Diekert, Florian Klaus; Schweder, Tore & Lund, Kristen (2014). From Open-Access to Individual Quotas: Disentangling the Effects of Policy Reform and Environmental Changes in the Norwegian Coastal Cod Fishery. Økonomisk Institutt, UiO. Full text in Research Archive
• Diekert, Florian Klaus; Hjermann, Dag Øystein; Nævdal, Eric & Stenseth, Nils Christian (2008). Optimal Age- and Gear-specific Harvesting Policies for North-East Arctic Cod. University of Oslo, Department of Economics. Full text in Research Archive

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