Johan van Rooyen

657 total citations
46 papers, 275 citations indexed

About

Johan van Rooyen is a scholar working on General Agricultural and Biological Sciences, Soil Science and Strategy and Management. According to data from OpenAlex, Johan van Rooyen has authored 46 papers receiving a total of 275 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in General Agricultural and Biological Sciences, 10 papers in Soil Science and 7 papers in Strategy and Management. Recurrent topics in Johan van Rooyen's work include Agricultural Innovations and Practices (12 papers), Land Rights and Reforms (8 papers) and Legal Issues in South Africa (5 papers). Johan van Rooyen is often cited by papers focused on Agricultural Innovations and Practices (12 papers), Land Rights and Reforms (8 papers) and Legal Issues in South Africa (5 papers). Johan van Rooyen collaborates with scholars based in South Africa, United States and Belgium. Johan van Rooyen's co-authors include Luc D’Haese, Nick Vink, Marijke D’Haese, Johann F. Kirsten, Ellen Van Damme, Charles Machethe, J. A. GROENEWALD, Les G Underhill, Jef L Leroy and Guido Van Huylenbroeck and has published in prestigious journals such as World Development, Food Policy and Development Southern Africa.

In The Last Decade

Johan van Rooyen

42 papers receiving 210 citations

Peers

Johan van Rooyen
C. J. van Rooyen South Africa
Alfred R. Bizoza Rwanda
David Trechter United States
M. Ataman Aksoy United States
David Hallam United Kingdom
Karl Meilke Canada
Richard L. Kilmer United States
Anita Regmi United States
Johan Swinnen United States
Ben Senauer United States
C. J. van Rooyen South Africa
Johan van Rooyen
Citations per year, relative to Johan van Rooyen Johan van Rooyen (= 1×) peers C. J. van Rooyen

Countries citing papers authored by Johan van Rooyen

Since Specialization
Citations

This map shows the geographic impact of Johan van Rooyen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Johan van Rooyen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Johan van Rooyen more than expected).

Fields of papers citing papers by Johan van Rooyen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Johan van Rooyen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Johan van Rooyen. The network helps show where Johan van Rooyen may publish in the future.

Co-authorship network of co-authors of Johan van Rooyen

This figure shows the co-authorship network connecting the top 25 collaborators of Johan van Rooyen. A scholar is included among the top collaborators of Johan van Rooyen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Johan van Rooyen. Johan van Rooyen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Underhill, Les G & Johan van Rooyen. (2020). Systematic atlasing in Hessequa – Report on the first cycle of seasonal monitoring. 11. 3 indexed citations
2.
Rooyen, Johan van. (2018). The Economic Impact of Geopolitical Unrest on Thailand's Tourism Industry. 3(2). 30–30. 1 indexed citations
3.
Rooyen, Johan van, et al.. (2018). Competing in a highly contested global environment: The case of the Namibian Date Value Chain - 2001 to 2013. AgEcon Search (University of Minnesota, USA).
4.
Rooyen, Johan van. (2014). Human Capital, Skills and Talent Development in South African Agribusiness. Journal of applied management and investments. 3(3). 179–182. 3 indexed citations
5.
D’Haese, Marijke, et al.. (2013). Improving food security in the rural areas of KwaZulu-Natal province, South Africa: Too little, too slow. Development Southern Africa. 30(4-05). 468–490. 29 indexed citations
6.
Rooyen, Johan van. (2012). Emerging trends and scenarios for agribusiness development in Africa.
7.
Rooyen, Johan van, et al.. (2010). Good governance and social responsibility in the South African wine industry. AgEcon Search (University of Minnesota, USA). 10(3). 88–98. 1 indexed citations
8.
Rooyen, Johan van, et al.. (2006). An Evaluation of the Competitiveness of the Agribusiness Sector in South Africa. Competition Forum. 16(1). 31. 13 indexed citations
9.
Anandajayasekeram, P., et al.. (1999). The socio-economic impact of the russian wheat aphid integrated control program. 8 indexed citations
10.
Laurent, Catherine, et al.. (1998). Households typology for relating social diversity and technical change. The example of rural households in the Khambashe area of the Eastern Cape Province of South Africa. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 3 indexed citations
11.
Kirsten, Johann F., et al.. (1998). AN ANALYSIS OF THE COMPARATIVE ADVANTAGE AND POLICY INCENTIVES OF COMMERCIAL WHEAT PRODUCTION IN SOUTH AFRICA. Agrekon. 37(4). 528–540. 5 indexed citations
12.
Rooyen, Johan van, et al.. (1998). Agricultural policy reform in South Africa. 13 indexed citations
13.
14.
Rooyen, Johan van, et al.. (1996). Agricultural education and training in South Africa: An overview. Development Southern Africa. 13(5). 713–731. 2 indexed citations
15.
Rooyen, Johan van, et al.. (1995). GRAIN AS A TRADING COMMODITY IN SOUTHERN AFRICA. Agrekon. 34(4). 282–287. 2 indexed citations
16.
Rooyen, Johan van, et al.. (1995). FARMWORKER PARTICIPATION SCHEMES: CONDITIONS FOR SUCCESS / PLAASWERKER DEELNAME SKEMAS: VEREISTES VIR SUKSESVOLLE TOEPASSING. Agrekon. 34(4). 183–189. 3 indexed citations
17.
Rooyen, Johan van, et al.. (1994). AGRICULTURAL CHANGE, RECONSTRUCTION AND DEVELOPMENT IN SOUTH AFRICA: COMMENTS ON THE RDP. Agrekon. 33(4). 257–260. 2 indexed citations
18.
Rooyen, Johan van, et al.. (1993). Agricultural change, the farm sector and the land issue in South Africa. Development Southern Africa. 10(1). 127–130. 7 indexed citations
19.
Christiansen, Robert E., et al.. (1993). Editors' introduction. World Development. 21(9). 1447–1450. 1 indexed citations
20.
Rooyen, Johan van, et al.. (1990). SOME CONSIDERATIONS ON ECONOMIC POLICY OPTIONS FOR AGRICULTURAL RESTRUCTURING IN SOUTH(ERN) AFRICA. Agrekon. 29(4). 424–429. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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