L.C. Zachariasse’s scientific contributions

... Landau et al. (2000) found an R 2 (adjusted) of 0.26 for the relation between detailed climatic data and yields of wheat trials in the UK, similar to our results. A detailed study on yield differences between farms in a very homogenous environment in the Netherlands explained 80-90% of variability, largely based on management factors (Zachariasse, 1974). The latter suggests that a more detailed approach in a limited number of sites in a more homogenous environment, together with accurate measurements of potential explanatory variables, could give better results. ...

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From targeting to tailoring: Baskets of options for legume cultivation among African smallholders

... Positions change frequently. Already in the 1970s, Zachariasse (1979) showed, for the Netherlands, that farmers who were initially in "top" positions could, after ten years, be in the lower echelons, and vice versa. Reverse trends exist where large, successful family farms might be divided at the moment of succession and split into smaller units. ...

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Investing in smallholder agriculture for food security

... De hogere opportunity cost van de arbeid vanwege de beloningscapaciteit ervan buiten het bedrijf en de nagestreefde arbeidsproduktiviteit binnen het bedrijf zullen de optimale bedrijfsgrootte ook de komende jaren doen toenemen. In het algemeen zijn de schaalvoordelen in de land-en tuinbouw al bij een geringe arbeidsbezetting realiseerbaar (Zachariasse, 1990a). Specialisatie door gelijktijdige arbeidsverdeling is vaak onmogelijk. ...

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Agrarisch bestaan : beschouwingen bij vijftig jaar Landbouw-Economisch Instituut

... Lusk et al. [49] present a detailed analysis of the farm-to-wholesale margins in their study and they also pointed to increasing profitability of meat packers and processors working with a reduced capacity during the COVID-19 pandemic. In addition to the market power, product heterogeneity, long-term contracts, and adjustments or menu costs are other reasons stated for the existence of asymmetric price adjustment along the U.S. beef supply chain [27,35,50]. ...

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The COVID-19 Pandemic and Dynamics of Price Adjustment in the U.S. Beef Sector

... Zachariasse described the development of agriculture over time as a function of the availability of resources and products, defining a sustainable state as a situation, in which there is surplus of both, resources and agricultural products (Zachariasse, 2004). The challenge of the actual situation of agriculture in Europe is, that more should be produced (in terms of quantity or quality) while significantly less resources should be used for this production (Fig. 1). ...

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Sustainability of horticulture in Europe (environmental, social, economic): examples from the pre- and the post-harvest food chain.