John Humphrey publications per year

The chart shows the history of publications by John Humphrey between 1974 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John Humphrey published across 52 years, from 1974 to 2025, averaging 3.3 papers a year. Output peaked at 13 publications in 2022. 26 of the 171 publications appeared in the last two years.

No. of publications

5 10

1974 2025

171 publications in total across all disciplines

View publications per year as a table

John Humphrey: publications per year, 1974 to 2025
Year	Publications
1974	1
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	2
1983	0
1984	1
1985	1
1986	0
1987	1
1988	1
1989	1
1990	0
1991	1
1992	1
1993	4
1994	3
1995	3
1996	4
1997	0
1998	3
1999	2
2000	9
2001	2
2002	3
2003	5
2004	8
2005	3
2006	6
2007	4
2008	8
2009	3
2010	2
2011	1
2012	4
2013	5
2014	9
2015	6
2016	0
2017	4
2018	2
2019	4
2020	0
2021	5
2022	13
2023	10
2024	13
2025	13
Total	171

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John Humphrey publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where John Humphrey sits on this spectrum.

No. of scientists

100 200 300 400

44–53 publications 570+

This scientist: 117 publications — 23rd percentile

23% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

View publications distribution as a table

Number of Social Sciences and Humanities scientists by publication count, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
Publications	Scientists	This scientist
44–53	28
54–63	61
64–73	161
74–83	225
84–93	301
94–103	390
104–113	406
114–123	474	117
124–133	453
134–143	434
144–153	407
154–163	411
164–173	391
174–183	313
184–193	319
194–203	304
204–213	285
214–223	246
224–233	213
234–243	170
244–253	167
254–263	162
264–273	138
274–283	138
284–293	113
294–303	106
304–313	95
314–323	101
324–333	81
334–343	69
344–353	56
354–363	36
364–373	42
374–383	41
384–393	44
394–403	27
404–413	30
414–423	20
424–433	29
434–443	29
444–453	25
454–463	19
464–473	21
474–483	11
484–493	17
494–503	7
504–513	6
514–523	12
524–533	10
534–543	7
544–553	6
554–563	12
564–569	8
570+	100

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John Humphrey D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where John Humphrey sits on this spectrum.

No. of scientists

100 200 300

30 D-Index 100+

This scientist: 39 D-Index — 30th percentile

30% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

View D-Index distribution as a table

Number of Social Sciences and Humanities scientists by D-index, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
D-Index	Scientists	This scientist
30	177
31	210
32	222
33	188
34	181
35	243
36	261
37	272
38	278
39	300	39
40	297
41	308
42	313
43	300
44	269
45	260
46	228
47	251
48	203
49	186
50	187
51	166
52	138
53	141
54	131
55	137
56	109
57	129
58	95
59	105
60	106
61	86
62	94
63	77
64	79
65	59
66	68
67	51
68	49
69	40
70	43
71	40
72	50
73	46
74	43
75	45
76	45
77	30
78	25
79	31
80	29
81	18
82	21
83	26
84	15
85	15
86	19
87	19
88	12
89	7
90	19
91	20
92	13
93	9
94	13
95	8
96	7
97	6
98	6
99	6
100+	97

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Overview

John Humphrey is affiliated with the University of Sussex in the United Kingdom. Their research spans several core areas within engineering and earth sciences, with extensive focus on hydrocarbon exploration, reservoir analysis, and geological processes.

The main fields of study represented in Humphrey's work are Engineering and Earth and Planetary Sciences. Within these broad areas, their subfields include Mechanics of Materials, Mechanical Engineering, Ocean Engineering, Earth-Surface Processes, and Paleontology.

Humphrey's research topics cover multiple aspects of geoscience and engineering, notably:

Hydrocarbon exploration and reservoir analysis
Geological formations and processes
Hydraulic fracturing and reservoir analysis
Drilling and well engineering
Geochemistry and geologic mapping
Paleontology and stratigraphy of fossils
Groundwater and isotope geochemistry

Selected recent publications demonstrate the diversity of Humphrey's research contributions:

Integrated Hydrogeological, Hydrochemical, and Isotopic Assessment of Seawater Intrusion into Coastal Aquifers in Al-Qatif Area, Eastern Saudi Arabia (2022), published in Molecules
Total organic carbon (TOC) quantification using artificial neural networks: Improved prediction by leveraging XRF data (2021), published in Journal of Petroleum Science and Engineering
Artificial Intelligence-Based Model of Mineralogical Brittleness Index Based on Rock Elemental Compositions (2022), published in Arabian Journal for Science and Engineering
Suitability of treated wastewater for irrigation and its impact on groundwater resources in arid coastal regions: Insights for water resources sustainability (2024), published in Heliyon
Evaluating properties of Arabian desert sands for use in solar thermal technologies (2021), published in Solar Energy Materials and Solar Cells

Humphrey is frequently published in several venues, with the highest number of publications appearing in:

Marine and Petroleum Geology
Zenodo (CERN European Organization for Nuclear Research)
Arabian Journal for Science and Engineering
SSRN Electronic Journal
Journal of Petroleum Science and Engineering

Collaboration is a notable aspect of Humphrey's academic activity. Regular coauthors include:

Omar Radwan
Ammar El-Husseiny
Khalid Al-Ramadan
Hassan A. Eltom
Septriandi A. Chan

Best Publications

The governance of global value chains

Gary Gereffi;John Humphrey;Timothy J. Sturgeon

10931
Citations
How does insertion in global value chains affect upgrading in industrial clusters

John Humphrey;Hubert Schmitz

2831
Citations
Governance and Upgrading: Linking Industrial Cluster and Global Value Chain Research

Hubert Schmitz;John Humphrey

1857
Citations
Governance in global value chains

John Humphrey;Hubert Schmitz

1776
Citations
Governance and Trade in Fresh Vegetables: The Impact of UK Supermarkets on the African Horticulture Industry

Catherine S. Dolan;John Humphrey

1739
Citations
Introduction: Globalisation, Value Chains and Development

Gary Gereffi;John Humphrey;Raphael Kaplinsky;Timothy J. Sturgeon

1514
Citations
The Global Automotive Industry Value Chain: What Prospects for Upgrading by Developing Countries?

John Humphrey;Olga Memedović

646
Citations
Changing Governance Patterns in the Trade in Fresh Vegetables between Africa and the United Kingdom

Catherine Dolan;John Humphrey

623
Citations
Trust and inter‐firm relations in developing and transition economies

John Humphrey;Hubert Schmitz

571
Citations
Understanding the complexities of private standards in global agri-food chains as they impact developing countries.

Spencer Henson;John Humphrey

553
Citations
The Triple C approach to local industrial policy

John Humphrey;Hubert Schmitz

501
Citations
Developing country firms in the world economy : governance and upgrading in global value chains

John Humphrey;Hubert Schmitz

445
Citations
Globalization and supply chain networks: the auto industry in Brazil and India

John Humphrey

421
Citations
Chain governance and upgrading: taking stock

John Humphrey;Hubert Schmitz

421
Citations
Horticulture Commodity Chains: The Impact of the UK Market on the African Fresh Vegetable Industry

Catherine Dolan;John Humphrey;Carla Harris-Pascal

385
Citations
The supermarket revolution in developing countries: tidal wave or tough competitive struggle?

John Humphrey

381
Citations
Global value chains in the agrifood sector

John Humphrey;Olga Memedovic

371
Citations
Industrial reorganization in developing countries: From models to trajectories

John Humphrey

343
Citations
Upgrading in Global Value Chains

John Humphrey

297
Citations
Global governance and developing countries: the implications of the rise of China

Jing Gu;John Humphrey;Dirk Messner

253
Citations

Frequent Co-Authors

Hubert Schmitz University of Sussex

Spencer Henson University of Guelph

Catherine Dolan School of Oriental and African Studies

Gary Gereffi Duke University

Raphael Kaplinsky University of Sussex

Roger Strange University of Sussex

External Links

Personal website of John Humphrey Google Scholar page

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