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The Department of Environmental Economics and Management

The Robert H. Smith Faculty
of Agriculture, Food and Environment
The Hebrew University of Jerusalem

PO Box 12, Rehovot 76100
Fax: 08-9466267

Department Head:
Prof. Ayal Kimhi, Tel: 08-9489376

Head of the teaching program:
Dr. Ohad Raveh, Tel: 08-9489373

Meital Kappach, Tel: 08-9489230


Hochman, G. ; Hochman, E. ; Naveh, N. ; Zilberman, D. The synergy between aquaculture and hydroponics technologies: The case of lettuce and tilapia. Sustainability (Switzerland) 2018, 10. Publisher's VersionAbstract
This study investigates the economic and environmental value of the use of technologies that convert pollution and waste in one production process to an input in another production process. The study focuses on an aquaponics case study to show that the negative externalities borne from intensive fish farming can be internalized without regulatory intervention through a combination of fish farming and hydroponics. The introduction of aquaponics diversified the farmers' sources of income, yielded savings in the cost of water purification and the cost of fertilizer for the plants' growth, and resulted in more fish and plant output compared to the unregulated scenario. While deriving these results, we also derive a separation rule for managing live aquatic inventory, which separates expenses (which are affected by the biology of fish) and income. © 2018 by the authors.
Tsur, Y. ; Hochman, E. Economic aspects of the management of algal production; CRC Handbook of Microalgal Mass Culture; 2017; pp. 473-483. Publisher's VersionAbstract
This chapter concerns the economic aspects associated with the development of the biotechnology of algal mass culture. Economic considerations have a major role in the chain of events that lead from the first research ideas and lab experiments up to the development of a self-sustained industry. Throughout the process there is an interaction between economic factors, such as prices of inputs and outputs as well as cost of research, and the various biological factors. © 1986 by Taylor & Francis.