Table 2. Spearman correlation coefficients of the comparisons between the relative research effort (RCA) of a given discipline in the year 2000 in a country with its economic growth as % difference in GDP per capita during the years 2000–2005.

Spearman correlations	ECI 2008-1998 (n = 61)	p-level	GDPc 2005-2000 (n = 89)	p-level
Materials Science	−0.029	0.8231	0.498	0.0000
Chemistry	−0.117	0.3713	0.439	0.0000
Physics & Astronomy	−0.132	0.3095	0.399	0.0002
Mathematics	−0.263	0.0402	0.259	0.0206
Engineering	−0.137	0.2909	0.241	0.0316
Energy	0.321	0.0117	0.176	0.1179
Chemical Engineering	−0.194	0.1346	0.139	0.2190
Earth & Planetary Sciences	0.049	0.7062	−0.024	0.8358
Decision Sciences	−0.209	0.1068	−0.050	0.6574
Business, Management & Accounting	0.046	0.7270	−0.102	0.3698
Computer Science	−0.267	0.0373	−0.122	0.2817
Health Professions	−0.277	0.0308	−0.260	0.0201
Environmental Science	0.145	0.2657	−0.272	0.0148
Dentistry	−0.106	0.4141	−0.287	0.0097
Social Sciences	0.108	0.4075	−0.301	0.0067
Agricultural & Biological Sciences	0.231	0.0729	−0.303	0.0063
Arts & Humanities	−0.102	0.4354	−0.305	0.0059
Veterinary	−0.036	0.7823	−0.328	0.0030
Economics, Econometrics & Finance	−0.094	0.4706	−0.345	0.0017
Immunology & Microbiology	0.019	0.8841	−0.382	0.0005
Biochemistry, Genetics & Molecular Biology	−0.380	0.0025	−0.403	0.0002
Pharmacology, Toxicology & Pharmaceutics	−0.148	0.2560	−0.404	0.0002
Neuroscience	−0.549	0.0000	−0.468	0.0000
Nursing	−0.147	0.2596	−0.483	0.0000
Psychology	−0.440	0.0004	−0.502	0.0000
Multidisciplinary	−0.294	0.0213	−0.504	0.0000
Medicine	−0.232	0.0719	−0.579	0.0000
Total Publication/capita (n = 80)	−0.52	0.0000	−0.31	0.006

Correlation coefficients of the comparison between RCA and economic complexity (ECI) are also presented. n indicates number of countries with data for the corresponding analysis.