• “All along the curves”: Bridging the gap between comparative statics and simultaneous econometric models 

      Brækkan, Eivind Hestvik; Myrland, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-31)
      A simultaneous econometric model of supply and demand provides estimates of own-price effects and the effect of exogenous variables on supply or demand. Most of the time economists use elasticities derived from econometric analysis in a ceteris paribus context, more seldom in a total elasticity setting (Buse in J Farm Econ 40:881–891, 1958). Perhaps even more seldom net effects of exogenous changes ...
    • The Bumpy Road of Demand Growth—An Application to Atlantic Salmon 

      Brækkan, Eivind Hestvik; Thyholdt, Sverre Braathen (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-10-16)
      We measure demand growth for all salmon-importing regions of the world using an index approach for the 2002–2011 period. Our results demonstrate that there are substantial variations in demand growth by region and over time. Russia and Brazil exhibit the highest demand growth, with average annual growth rates of approximately 20%. More established markets, such as the United States and Japan, ...
    • The demands they are a-changin' 

      Brækkan, Eivind Hestvik; Thyholdt, Sverre Braathen; Asche, Frank; Myrland, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-15)
      Smooth operators such as time trends are often applied to deal with unidentified demand shifters. However, if unknown factors affect demand irregularly, a time trend fails to capture the variation. We present an index approach for estimating irregular demand shifts, decomposing total demand shifts into predicted and unexplained effects. This allows separating demand shifts caused by known factors ...
    • Determinants of inefficiency in shrimp aquaculture under environmental impacts: Comparing shrimp production systems in the Mekong, Vietnam 

      Le, Thi Thanh Ngan; Brækkan, Eivind Hestvik; Armstrong, Claire W.; Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-26)
      Shrimp aquaculture systems vary from primitive (extensive/ improved extensive) to more industrialized (intensive/semiintensive) farms, and the impacts of environmental shocks may differ between them. This article applies the Cobb– Douglas stochastic production frontier function to evaluate the determinants that impact the inefficiency of these intensive and extensive systems in Vietnam. Data ...
    • Disentangling supply and demand shifts: the impacts on world salmon price 

      Brækkan, Eivind Hestvik (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Global Seafood Demand Growth Differences across Regions, Income Levels, and Time 

      Kidane, Dejene Gizaw; Brækkan, Eivind Hestvik (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-01)
      We used an index approach to calculate demand growth for seafood in 107 countries from 1984 to 2013. We used the results to calculate aggregate demand growth by income level, regionally, and globally. While seafood production has more than doubled since the mid-1980s, we showed that global demand for seafood has been higher than the global seafood supply. Demand growth for seafood varies across time, ...
    • Patentering og innovasjon 

      Brækkan, Eivind Hestvik (Master thesis; Mastergradsoppgave, 2010-03)
      Denne oppgaven tar for seg innovasjon og patentering. I oppgaven blir det tatt for seg ulike hensikter som ligger bak bruken av patenter som virkemiddel for innovasjon, og ulike årsaker til forskjeller i innovasjonsnivå og patenteringsaktivitet blant innovative aktører. Det blir fokusert på samfunnsøkonomiske effekter av patenter, med et særlig fokus på hvordan patenter kan sies å henge sammen med ...
    • Why do Prices Change? An Analysis of Supply and Demand Shifts and Price Impacts in the Farmed Salmon Market 

      Brækkan, Eivind Hestvik (Doctoral thesis; Doktorgradsavhandling, 2014-09-01)
      Price changes in any market are essentially due to shifts in supply relative to demand. In a global market there can be several simultaneous supply and demand shifts in different geographical locations, all affecting prices to different extents. This dissertation focuses on procedures for measuring such shifts and their relative effects on prices by looking at the global market for farmed salmon ...