C. J. van Rooyen

742 total citations
55 papers, 458 citations indexed

About

C. J. van Rooyen is a scholar working on Strategy and Management, General Agricultural and Biological Sciences and Soil Science. According to data from OpenAlex, C. J. van Rooyen has authored 55 papers receiving a total of 458 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Strategy and Management, 16 papers in General Agricultural and Biological Sciences and 12 papers in Soil Science. Recurrent topics in C. J. van Rooyen's work include Agricultural Innovations and Practices (14 papers), Land Rights and Reforms (11 papers) and Global Trade and Competitiveness (7 papers). C. J. van Rooyen is often cited by papers focused on Agricultural Innovations and Practices (14 papers), Land Rights and Reforms (11 papers) and Global Trade and Competitiveness (7 papers). C. J. van Rooyen collaborates with scholars based in South Africa, Italy and Belgium. C. J. van Rooyen's co-authors include Nick Vink, Marijke D’Haese, Luc D’Haese, Hettie C. Schönfeldt, Nathalie De Cock, Johann F. Kirsten, Micah B. Masuku, Sylvain Perret, Herman D. van Schalkwyk and C. Laurent and has published in prestigious journals such as Food Security, Journal of International Development and Development Southern Africa.

In The Last Decade

C. J. van Rooyen

52 papers receiving 402 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
C. J. van Rooyen South Africa	11	165	122	105	78	72	55	458
Stephen Greenberg United States	11	113 0.7×	76 0.6×	67 0.6×	51 0.7×	42 0.6×	35	444
Johan van Rooyen South Africa	9	70 0.4×	62 0.5×	32 0.3×	61 0.8×	49 0.7×	46	275
Blessings Chinsinga Malawi	15	337 2.0×	155 1.3×	38 0.4×	26 0.3×	90 1.3×	54	626
Sikhulumile Sinyolo South Africa	10	180 1.1×	92 0.8×	66 0.6×	24 0.3×	103 1.4×	32	408
Micah B. Masuku Eswatini	14	226 1.4×	117 1.0×	26 0.2×	84 1.1×	113 1.6×	50	568
Karim Hussein United Kingdom	9	128 0.8×	71 0.6×	40 0.4×	26 0.3×	40 0.6×	19	358
Kefasi Nyikahadzoi Zimbabwe	10	237 1.4×	142 1.2×	126 1.2×	20 0.3×	104 1.4×	37	549
Kostas G. Stamoulis United States	10	140 0.8×	81 0.7×	25 0.2×	30 0.4×	128 1.8×	22	352
Zerihun Gudeta Alemu South Africa	13	190 1.2×	116 1.0×	64 0.6×	46 0.6×	236 3.3×	22	511
James Osei Mensah Ghana	12	158 1.0×	111 0.9×	71 0.7×	61 0.8×	137 1.9×	40	515

Countries citing papers authored by C. J. van Rooyen

Since Specialization

Citations

This map shows the geographic impact of C. J. 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 C. J. 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 C. J. van Rooyen more than expected).

Fields of papers citing papers by C. J. van Rooyen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by C. J. 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 C. J. van Rooyen. The network helps show where C. J. van Rooyen may publish in the future.

Co-authorship network of co-authors of C. J. van Rooyen

This figure shows the co-authorship network connecting the top 25 collaborators of C. J. van Rooyen. A scholar is included among the top collaborators of C. J. 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 C. J. van Rooyen. C. J. van Rooyen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Lange, Willem de, et al.. (2025). Blockchain in agricultural value chains of developing economies – progress, challenges, and future pathways. Agrekon. 64(2). 130–148. 2 indexed citations

Rooyen, C. J. van, et al.. (2018). An analysis of the indicators affecting urban household food insecurity in the informal settlement area of the Cape Town Metropole. Suid-Afrikaanse tydskrif vir landbouvoorligting/South African journal of agricultural extension. 46(1). 3 indexed citations

Rooyen, C. J. van, et al.. (2014). Towards 2050: Trends and Scenarios for African Agribusiness. The International Food and Agribusiness Management Review. 17. 19. 9 indexed citations

Cock, Nathalie De, Marijke D’Haese, Nick Vink, et al.. (2013). Food security in rural areas of Limpopo province, South Africa. Food Security. 5(2). 269–282. 139 indexed citations

Rooyen, C. J. van, et al.. (2012). MEASUREMENT AND ANALYSIS OF THE TRENDS IN COMPETITIVE PERFORMANCE: SOUTH AFRICAN AGRIBUSINESS DURING THE 2000’s. Journal of applied management and investments. 1(4). 426–434. 3 indexed citations

Rooyen, C. J. van, et al.. (2011). Towards redesigning the Agricultural extension service in South Africa: views and proposals of extensionists in the Eastern Cape. Suid-Afrikaanse tydskrif vir landbouvoorligting/South African journal of agricultural extension. 39(2). 57–68. 11 indexed citations

Rooyen, C. J. van, et al.. (2009). Towards designing a new agricultural extension service for the Eastern Cape Province: a perception analysis.. 38(1). 65–76. 4 indexed citations

Rooyen, C. J. van, et al.. (2006). An inquiry into factors impacting on the competitiveness of the South African wine industry. Agrekon. 45(4). 467–485. 18 indexed citations

Rooyen, C. J. van, et al.. (2003). MEASURING THE AGRIBUSINESS DECISION ENVIRONMENT: CONSTRUCTING AN AGRIBUSINESS CONFIDENCE INDEX FOR SOUTH AFRICA. Agrekon. 42(4). 379–388. 1 indexed citations

10.

Rooyen, C. J. van, et al.. (2002). Agricultural project planning and analysis. 2 indexed citations

11.

Rooyen, C. J. van, et al.. (2001). COMPETING AT THE “CUTTING EDGE”: OPPORTUNITIES FOR AGRIBUSINESS PARTNERSHIPS AND CO-OPERATION IN THE SOUTHERN AFRICAN REGION. Agrekon. 40(1). 13–24. 5 indexed citations

12.

Rooyen, C. J. van, et al.. (2001). “WINNERS”, “LOSERS” AND “TURNAROUNDS” IN THE SOUTH AFRICAN AGRO-FOOD AND FIBRE INDUSTRY. Agrekon. 40(4). 584–592. 4 indexed citations

13.

Rooyen, C. J. van. (2000). THE DILEMMA OF A CONTEMPORARY AGRICULTURAL ECONOMIST: WILL THE REAL PROFESSOR TOMLINSON PLEASE STEP FORWARD!z. Agrekon. 39(3). 223–234. 3 indexed citations

14.

Rooyen, C. J. van, et al.. (1999). THE TRAINING OF AGRIBUSINESS MANAGERS FOR THE FUTURE. Agrekon. 38(4). 766–776. 1 indexed citations

15.

Schalkwyk, Herman D. van, C. J. van Rooyen, & A. Jooste. (1994). POSSIBLE EFFECTS OF AN AGRICULTURAL LAND TAX IN SOUTH AFRICA. Agrekon. 33(4). 206–212. 4 indexed citations

16.

Rooyen, C. J. van, et al.. (1990). FARMING SYSTEMS RESEARCH AND EXTENSION IN SOUTH AFRICA: LESSONS OF EXPERIENCE. Agrekon. 29(4). 363–370.

17.

Rooyen, C. J. van. (1989). PRESIDENTIAL ADDRESS: IMPORTANT THEMES IN AGRICULTURAL ECONOMICS. Agrekon. 28(1). 1–8. 1 indexed citations

18.

Rooyen, C. J. van, et al.. (1987). Access to the agricultural market for small farmers in Southern Africa: The farmer support programme. Development Southern Africa. 4(2). 207–223. 57 indexed citations

19.

Rooyen, C. J. van, et al.. (1985). The contribution of agricultural economics to development. Development Southern Africa. 2(2). 271–286. 3 indexed citations

20.

Danckwerts, J.E. & C. J. van Rooyen. (1980). Maximum profitability as a criterion for optimisation of utilisation intensity. Proceedings of the Annual Congresses of the Grassland Society of Southern Africa. 15(1). 53–57. 2 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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