Economic Institution Rankings at IDEAS

This file is part of IDEAS, which uses RePEc data

Top 5% Economic Institutions, as of August 2007

Number of Distinct Works, Weighted by Number of Authors and Recursive Impact Factors

Only authors registered with the RePEc Author Service are considered.
Only works listed on RePEc and claimed as theirs by registered authors are counted.
Each work is weighted by its recursive impact factor.
Different versions of the same work published in different series or journals are counted only once, the version with the highest impact factor being considered.
The score of each work is divided by the number of authors.
Authors are attributed equally and fully to each institution they claimed to be affiliated with.
Only institutions listed in EDIRC are counted.
Authors affiliated with subentities of institutions listed in EDIRC are also counted in the latter.
Subentities of ranked institutions do not increment the rank count and have their rank listed in parentheses

This ranking is based on 3393 institutions with 13946 registered authors.

Same ranking by individual authors or countries and states. All institution rankings. More rankings.

The data presented here is experimental. It is based on a limited sample of the research output in Economics and Finance. Only material catalogued in RePEc is considered. For any citation based criterion, only works that could be parsed by the CitEc project are considered. For any ranking of people, only those registered with the RePEc Author Service can be taken into account. And for rankings of institutions, only those listed in EDIRC and claimed as affiliation by the respective, registered authors can be measured. Thus, this list is by no means based on a complete sample. You can help making this more comprehensive by encouraging more publications to be listed (instructions) and more authors to register (form). For more details on the various rankings that are available as well for documentation, follow this link.

Rank	Institution	Location	Score	Authors
1	National Bureau of Economic Research (NBER)	Cambridge, Massachusetts (USA)	1971	274
2	Centre for Economic Policy Research (CEPR)	London, United Kingdom	645	230
3	Institute for the Study of Labor (IZA)	Bonn, Germany	476.37	340
4	Department of Economics, Harvard University	Cambridge, Massachusetts (USA)	413.15	38
5	Department of Economics, Princeton University	Princeton, New Jersey (USA)	256.15	43
6	Department of Economics, University of California-Berkeley	Berkeley, California (USA)	221.28	33
7	Economics Department, Massachusetts Institute of Technology (MIT)	Cambridge, Massachusetts (USA)	184.39	27
8	Kennedy School of Government, Harvard University	Cambridge, Massachusetts (USA)	178.54	31
9	Department of Economics, New York University	New York City, New York (USA)	167.57	34
10	Cowles Foundation for Economic Research, Yale University	New Haven, Connecticut (USA)	163.8	14
11	CESifo	München, Germany	157.56	84
12	London School of Economics (LSE), University of London	London, United Kingdom	157.39	112
13	Graduate School of Business, Columbia University	New York City, New York (USA)	148.45	32
14	Department of Economics, School of Arts and Sciences, Columbia University	New York City, New York (USA)	135.7	34
15	Economics Department, Yale University	New Haven, Connecticut (USA)	121.55	22
16	Graduate School of Business, University of Chicago	Chicago, Illinois (USA)	121.43	31
(16)	Finance & Economics Department, Graduate School of Business, Columbia University	New York City, New York (USA)	120.61	19
17	Department of Economics, University of Chicago	Chicago, Illinois (USA)	114.2	23
18	International Monetary Fund (IMF)	Washington, District of Columbia (USA)	110.28	145
19	Hoover Institution on War Revolution & Peace, Stanford University	Palo Alto, California (USA)	107.35	13
20	Federal Reserve Bank of Minneapolis	Minneapolis, Minnesota (USA)	105.05	15
21	Department of Economics, Boston University	Boston, Massachusetts (USA)	100.15	37
22	Economics Department, University of Wisconsin-Madison	Madison, Wisconsin (USA)	96.79	20
23	Department of Economics, University of California-San Diego (UCSD)	La Jolla, California (USA)	95.44	31
24	Department of Economics, Northwestern University	Evanston, Illinois (USA)	95.24	22
25	Harvard Business School, Harvard University	Cambridge, Massachusetts (USA)	93.51	17
26	Department of Economics, Stanford University	Palo Alto, California (USA)	92.36	29
27	Wharton School of Business, University of Pennsylvania	Philadelphia, Pennsylvania (USA)	91.54	38
(27)	Centre for Economic Performance (CEP), London School of Economics (LSE), University of London	London, United Kingdom	90.91	35
28	Department of Economics, University of California-Los Angeles (UCLA)	Los Angeles, California (USA)	89.94	26
29	Department of Economics, University of Minnesota	Minneapolis, Minnesota (USA)	88.98	13
30	Department of Economics, Oxford University	Oxford, United Kingdom	86.22	105
31	Department of Economics, University of Pennsylvania	Philadelphia, Pennsylvania (USA)	76.79	26
32	Department of Economics, Boston College	Chestnut Hill, Massachusetts (USA)	75.22	32
33	World Bank Group	Washington, District of Columbia (USA)	72.78	123
(33)	Research Department, Federal Reserve Bank of Minneapolis	Minneapolis, Minnesota (USA)	72.01	11
34	Economics Department, University of California-Santa Cruz (UCSC)	Santa Cruz, California (USA)	71.51	11
35	Economics Department, University of Michigan	Ann Arbor, Michigan (USA)	70.68	28
36	Federal Reserve Board (Board of Governors of the Federal Reserve System)	Washington, District of Columbia (USA)	68.85	46
(36)	Economics Department, London School of Economics (LSE), University of London	London, United Kingdom	67.88	42
37	Stern School of Business, New York University	New York City, New York (USA)	65.95	30
38	Kellogg Graduate School of Management, Northwestern University	Evanston, Illinois (USA)	64.33	28
39	Walter A. Haas School of Business, University of California-Berkeley	Berkeley, California (USA)	63.46	15
40	Department of Economics, Hebrew University of Jerusalem	Jerusalem, Israel	63.2	22
41	Paris-Jourdan Sciences Économiques (PSE), École Normale Supérieure	Paris, France	63.09	54
42	Department of Economics, Vanderbilt University	Nashville, Tennessee (USA)	62.66	22
43	Tepper School of Business Administration, Carnegie Mellon University	Pittsburgh, Pennsylvania (USA)	61.11	13
44	Federal Reserve Bank of New York	New York City, New York (USA)	60.77	36
45	Institut d'Économie Industrielle (IDEI), Université des Sciences Sociales (Toulouse I)	Toulouse, France	59.64	23
46	Department of Economics, University of Warwick	Coventry, United Kingdom	58.83	37
47	School of International and Public Affairs (SIPA), Columbia University	New York City, New York (USA)	58.17	14
48	Economics Department, University of California-Davis	Davis, California (USA)	57.94	22
49	Economics Department, Brown University	Providence, Rhode Island (USA)	57.4	31
50	Graduate School of Business, Stanford University	Palo Alto, California (USA)	56.81	19
(50)	Department of Economics, Tepper School of Business Administration, Carnegie Mellon University	Pittsburgh, Pennsylvania (USA)	55.67	9
51	Eitan Berglas School of Economics, Tel Aviv University	Tel Aviv, Israel	55.32	12
52	Department of Economics, University of Toronto	Toronto, Canada	55.26	51
53	Department of Economics, University of Texas-Austin	Austin, Texas (USA)	54.89	20
(53)	Center for International Development, Kennedy School of Government, Harvard University	Cambridge, Massachusetts (USA)	54.72	5
54	Innocenzo Gasparini Institute for Economic Research (IGIER), Università Commerciale Luigi Bocconi	Milano, Italy	54.02	31
55	Woodrow Wilson School of Public and International Affairs, Princeton University	Princeton, New Jersey (USA)	52.13	11
56	School of Management, Yale University	New Haven, Connecticut (USA)	51.74	12
57	Department of Economics and Related Studies, University of York	York, United Kingdom	51.4	24
(57)	Finance Department, Wharton School of Business, University of Pennsylvania	Philadelphia, Pennsylvania (USA)	51.19	16
58	Federal Reserve Bank of San Francisco	San Francisco, California (USA)	49.87	24
59	Anderson Graduate School of Management, University of California-Los Angeles (UCLA)	Los Angeles, California (USA)	48.68	6
60	Business School, University of Auckland	Auckland, New Zealand	47.85	10
(60)	Department of Economics, Business School, University of Auckland	Auckland, New Zealand	47.44	8
61	Brookings Institution	Washington, District of Columbia (USA)	47.05	11
62	Department of Economics, University of Maryland	College Park, Maryland (USA)	46.49	21
63	Department of Economics, University of British Columbia	Vancouver, Canada	46.13	22
64	Economics Department, Queen's University	Kingston, Canada	45.83	41
65	Department of Economics, University College London, University of London	London, United Kingdom	45.11	34
66	Institute for Fiscal Studies (IFS)	London, United Kingdom	43.78	31
67	Department of Economics, Rutgers University-New Brunswick	New Brunswick, New Jersey (USA)	43	15
68	Sveriges Riksbank	Stockholm, Sweden	42.39	19
69	Sloan School of Management, Massachusetts Institute of Technology (MIT)	Cambridge, Massachusetts (USA)	42.26	17
70	Faculteit Economie en Bedrijfskunde, Universiteit van Amsterdam	Amsterdam, Netherlands	41.56	60
71	European Central Bank	Frankfurt am Main, Germany	41.06	63
72	Stanford Institute for Economic Policy Research (SIEPR), Stanford University	Palo Alto, California (USA)	40.32	7
(72)	Economic Research, Federal Reserve Bank of San Francisco	San Francisco, California (USA)	40.31	19
73	Department of Economics, Duke University	Durham, North Carolina (USA)	40.12	27
74	Department of Economics, Washington University	St. Louis, Missouri (USA)	38.91	16
75	Department of Economics, University of Western Ontario	London, Canada	38.84	23
(75)	Economic Analysis & Policy Group (EAP), Walter A. Haas School of Business, University of California-Berkeley	Berkeley, California (USA)	38.64	6
76	American Bar Foundation (ABF)	Chicago, Illinois (USA)	38.41	3
(76)	Center for Business and Government, Kennedy School of Government, Harvard University	Cambridge, Massachusetts (USA)	38.28	3
77	Federal Reserve Bank of Chicago	Chicago, Illinois (USA)	38.09	15
78	Faculty of Economics, University of Cambridge	Cambridge, United Kingdom	37.92	42
79	Department of Economics, Graduate School, City University of New York	New York City, New York (USA)	37.21	12
80	Economics Department, Michigan State University	East Lansing, Michigan (USA)	35.9	33
81	Volkswirtschaftliche Fakultät, Ludwig-Maximilians-Universität	München, Germany	35.66	28
82	Departament d'Economia i Empresa, Universitat Pompeu Fabra	Barcelona, Spain	35.56	44
(82)	Economics Department, Stern School of Business, New York University	New York City, New York (USA)	35.32	14
(82)	Global Economics & Management Group, Anderson Graduate School of Management, University of California-Los Angeles (UCLA)	Los Angeles, California (USA)	35.15	2
(82)	Harvard Institute of Economic Research (HIER), Department of Economics, Harvard University	Cambridge, Massachusetts (USA)	34.7	2
83	Institute for International Economic Studies (IIES), Stockholms Universitet	Stockholm, Sweden	34.65	8
84	College of Business, Arizona State University	Tempe, Arizona (USA)	34.46	13
(84)	Department of Economics, College of Business, Arizona State University	Tempe, Arizona (USA)	34.06	11
85	Federal Reserve Bank of St. Louis	St. Louis, Missouri (USA)	34.05	30
(85)	Economic Research, Federal Reserve Bank of St. Louis	St. Louis, Missouri (USA)	33.69	27
86	Institutet för Näringslivsforskning (IFN)	Stockholm, Sweden	33.47	19
87	Department of Economics, University of Washington	Seattle, Washington (USA)	33.43	12
88	DIW Berlin (Deutsches Institut für Wirtschaftsforschung)	Berlin, Germany	33.23	103
89	Economics Department, Dartmouth College	Hanover, New Hampshire (USA)	33.02	10
90	Department of Economics, University of California-Santa Barbara (UCSB)	Santa Barbara, California (USA)	32.27	11
(90)	Department of Finance, Kellogg Graduate School of Management, Northwestern University	Evanston, Illinois (USA)	32	10
91	Department of Economics, University of Colorado	Boulder, Colorado (USA)	31.82	20
(91)	Economics Research, World Bank Group	Washington, District of Columbia (USA)	31.75	34
92	Tinbergen Instituut	Amsterdam, Netherlands	31.51	48
(92)	Research and Market Analysis Group, Federal Reserve Bank of New York	New York City, New York (USA)	31.5	17
93	Ross School of Business, University of Michigan	Ann Arbor, Michigan (USA)	31.27	12
(93)	Center for Economic Policy Studies, Department of Economics, Princeton University	Princeton, New Jersey (USA)	29.67	2
(93)	Research Department, International Monetary Fund (IMF)	Washington, District of Columbia (USA)	29.5	28
94	Geary Institute, University College Dublin	Dublin, Ireland	29.45	6
(94)	Robert D. Burch Center for Tax Policy and Public Finance, Department of Economics, University of California-Berkeley	Berkeley, California (USA)	29.34	1
95	Rimini Center for Economic Analysis (RCEA)	Rimini, Italy	28.76	27
96	Economics Group, Nuffield College, Oxford University	Oxford, United Kingdom	28.36	26
(96)	Centre de Recherche en Économie et Statistique (CREST), Institut National de la Statistique et des Études Économiques (INSEE), Government of France	Paris, France	27.65	27
97	Institut National de la Statistique et des Études Économiques (INSEE), Government of France	Paris, France	27.65	27
98	Faculty of Economics, University of Tokyo	Tokyo, Japan	27.62	13
99	Economics Department, Georgetown University	Washington, District of Columbia (USA)	27.53	23
100	William Davidson Institute, University of Michigan	Ann Arbor, Michigan (USA)	27.48	22
(100)	Economic Research Department, Federal Reserve Bank of Chicago	Chicago, Illinois (USA)	26.94	9
(100)	Finance Unit, Harvard Business School, Harvard University	Cambridge, Massachusetts (USA)	26.09	4
101	Department of Economics, University of California-Irvine	Irvine, California (USA)	25.84	13
102	Department of Economics, Cornell University	Ithaca, New York (USA)	25.7	20
103	Department of Economics, European University Institute	Firenze, Italy	25.51	40
104	CentER for Economic Research, Universiteit van Tilburg (Katholieke Universiteit Brabant)	Tilburg, Netherlands	25.06	26
105	Department of Economics, Johns Hopkins University	Baltimore, Maryland (USA)	24.35	9
106	Centre for Household, Income, Labour and Demographic Economics (CHILD)	Torino, Italy	24.29	48
107	European Centre for Advanced Research in Economics and Statistics (ECARES), Université Libre de Bruxelles	Bruxelles, Belgium	24.27	28
108	RAND	Santa Monica, California (USA)	24.24	15
109	Olin School of Business, Washington University	St. Louis, Missouri (USA)	23.95	10
110	International Business School, Brandeis University	Waltham, Massachusetts (USA)	23.82	14
111	Department of Economics, Ohio State University	Columbus, Ohio (USA)	23.66	16
112	School of Industrial & Labor Relations, Cornell University	Ithaca, New York (USA)	23.27	7
113	Department of Economics, Tufts University	Medford, Massachusetts (USA)	23.27	16
114	Wirtschaftswissenschaftliche Fakutät, Universität Zürich	Zürich, Switzerland	23.26	28
115	Federal Reserve Bank of Philadelphia	Philadelphia, Pennsylvania (USA)	23.09	9
(115)	Research Department, Federal Reserve Bank of Philadelphia	Philadelphia, Pennsylvania (USA)	23.09	9
116	College of Business Administration, University of Illinois at Chicago	Chicago, Illinois (USA)	22.65	24
117	United Nations University-Maastricht Economic Research Institute of Innovation and Technology (UNU-MERIT)		22.63	33
118	Department of Economics, Iowa State University	Ames, Iowa (USA)	22.59	36
119	Sauder School of Business, University of British Columbia	Vancouver, Canada	22.54	15
(119)	Strategy and Business Economics Division, Sauder School of Business, University of British Columbia	Vancouver, Canada	22.34	14
(119)	Department of Business Economics and Public Policy, Ross School of Business, University of Michigan	Ann Arbor, Michigan (USA)	22.11	2
120	Department of Economics, Pennsylvania State University	State College, Pennsylvania (USA)	21.92	10
(120)	International Economics Section, Department of Economics, Princeton University	Princeton, New Jersey (USA)	21.65	4
121	Toulouse School of Economics (TSE)	Toulouse, France	21.53	42
122	Centro Studi di Economia e Finanza (CSEF)	Fisciano, Italy	21.41	24
(122)	Finance Department, Stern School of Business, New York University	New York City, New York (USA)	21.39	6
(122)	Department of Economics, College of Business Administration, University of Illinois at Chicago	Chicago, Illinois (USA)	21.3	20
123	Department of Economics, McGill University	Montréal, Canada	20.81	23
(123)	Industrial Relations Section, Department of Economics, Princeton University	Princeton, New Jersey (USA)	20.72	5
(123)	Research Program in Development Studies, Woodrow Wilson School of Public and International Affairs, Princeton University	Princeton, New Jersey (USA)	20.44	2
(123)	Office of Tax Policy Research (OTPR), Ross School of Business, University of Michigan	Ann Arbor, Michigan (USA)	20.12	2
124	Public Policy Institute of California (PPIC)	San Francisco, California (USA)	20.04	9
125	Institute for Research on Poverty, University of Wisconsin-Madison	Madison, Wisconsin (USA)	20.03	9
126	Departamento de Economía, Universidad Carlos III de Madrid	Madrid, Spain	19.96	60
127	Federal Reserve Bank of Cleveland	Cleveland, Ohio (USA)	19.78	12
(127)	Economic Studies, Brookings Institution	Washington, District of Columbia (USA)	19.69	5
128	Centre d'Économie de la Sorbonne, Université Panthéon-Sorbonne (Paris I)	Paris, France	19.59	94
129	International Economics Section, Graduate Institute of International Studies (GIIS)	Genève, Switzerland	19.41	15
130	Economics Department, University of Essex	Colchester, United Kingdom	19.33	26
131	Centre Interuniversitaire de Recherche en Économie Quantitative (CIREQ)	Montréal, Canada	19.31	20
132	Centre de Recerca en Economia Internacional (CREI)	Barcelona, Spain	19.24	8
133	London Business School (LBS), University of London	London, United Kingdom	19.16	13
(133)	Institut für Empirische Wirtschaftsforschung, Wirtschaftswissenschaftliche Fakutät, Universität Zürich	Zürich, Switzerland	18.81	11
134	Faculteit der Economische Wetenschappen en Bedrijfskunde, Universiteit Maastricht	Maastricht, Netherlands	18.8	36
135	Swiss Finance Institute	Genève/Zürich, Switzerland	18.69	7
(135)	Applied Economics Workshop, Graduate School of Business, University of Chicago	Chicago, Illinois (USA)	18.25	5
136	Wirtschaftswissenschaftliche Fakultät, Humboldt-Universität	Berlin, Germany	18.21	65
137	Groupement de Recherche en Économie Quantitative d'Aix-Marseille (GREQAM)	Marseille, France	18.13	30
138	Organisation de Coopération et de Développement Économiques (OCDE)	Paris, France	18.11	74
139	Department of Economics, University of Iowa	Iowa City, Iowa (USA)	18.1	15
(139)	Business, Government and the International Economy (BGIE) Unit, Harvard Business School, Harvard University	Cambridge, Massachusetts (USA)	18.03	3
140	Department of Economics, Royal Holloway, University of London	Egham, United Kingdom	17.97	27
141	Centre Interuniversitaire de Recherche en Analyse des Organisations (CIRANO)	Montréal, Canada	17.9	25
(141)	Foerder Institute for Economic Research, Eitan Berglas School of Economics, Tel Aviv University	Tel Aviv, Israel	17.87	3
(141)	Center for Economic Studies (CES), Volkswirtschaftliche Fakultät, Ludwig-Maximilians-Universität	München, Germany	17.82	5
142	Robert M. La Follette School of Public Affairs, University of Wisconsin-Madison	Madison, Wisconsin (USA)	17.74	5
143	Department of Economics, Birkbeck College, University of London	London, United Kingdom	17.67	15
144	Department of Economics, Simon Fraser University	Burnaby, Canada	17.64	27
145	Warrington College of Business, University of Florida	Gainesville, Florida (USA)	17.62	9
146	Handelshögskolan i Stockholm	Stockholm, Sweden	17.56	29
147	Department of Economics, University of Illinois at Urbana-Champaign	Urbana-Champaign, Illinois (USA)	17.52	19
(147)	Economic Policy Research Institute (EPRI), Department of Economics, University of Western Ontario	London, Canada	17.21	2
148	Wirtschaftswissenschaftlicher Fachbereich, Rheinische Friedrich-Wilhelms-Universität	Bonn, Germany	17.15	23
(148)	Suntory and Toyota International Centres for Economics and Related Disciplines (STICERD), London School of Economics (LSE), University of London	London, United Kingdom	16.86	16
149	Economics Department, University of Rochester	Rochester, New York (USA)	16.5	9
150	Department of Economics, University of Virginia	Charlottesville, Virginia (USA)	16.47	13
151	School of Public Affairs, University of California-Los Angeles (UCLA)	Los Angeles, California (USA)	16.35	3
152	Dipartimento di Economia Politica, Università Commerciale Luigi Bocconi	Milano, Italy	16.3	12
153	Department of Economics, Queens College, City University of New York	New York City, New York (USA)	16.05	3
154	Institute of Economic Research, Hitotsubashi University	Tokyo, Japan	16.03	9
(154)	Pension Research Council, Wharton School of Business, University of Pennsylvania	Philadelphia, Pennsylvania (USA)	16.03	2
155	College of Business and Economics, Australian National University	Canberra, Australia	16.03	27
(155)	Economic Research, Federal Reserve Bank of Cleveland	Cleveland, Ohio (USA)	16.01	9
156	Department of Economics, University of Southern California	Los Angeles, California (USA)	15.92	7
157	ifo Institut für Wirtschaftsforschung e.V.	München, Germany	15.9	11
(157)	Department of Economics, London Business School (LBS), University of London	London, United Kingdom	15.86	6
158	Federal Reserve Bank of Richmond	Richmond, Virginia (USA)	15.8	10
(158)	Centre for the Study of International Economic Relations (CSIER), Department of Economics, University of Western Ontario	London, Canada	15.66	1
159	Centre for International Governance Innovation (CIGI)	Waterloo, Canada	15.66	1
160	École des Hautes Études Commerciales (HEC), Université de Lausanne	Lausanne, Switzerland	15.62	19
161	Department of Economics, Emory University	Atlanta, Georgia (USA)	15.6	17
162	William E. Simon Graduate School of Business Administration, University of Rochester	Rochester, New York (USA)	15.45	6
163	Research Institute of Economy, Trade and Industry (RIETI)	Tokyo, Japan	15.45	6
(163)	Groupe de Recherche en Économie Mathématique et Quantitative (GREMAQ), Toulouse School of Economics (TSE)	Toulouse, France	15.41	26
(163)	Stanford Center for International Development (SCID), Stanford Institute for Economic Policy Research (SIEPR), Stanford University	Palo Alto, California (USA)	15.38	1
(163)	Vakgroep Algemene Economie, Faculteit der Economische Wetenschappen en Bedrijfskunde, Universiteit Maastricht	Maastricht, Netherlands	15.21	20
164	Joseph L. Rotman School of Management, University of Toronto	Toronto, Canada	15.11	17
(164)	Harvard Institute for International Development (HIID), Kennedy School of Government, Harvard University	Cambridge, Massachusetts (USA)	15.03	1
165	Nationalekonomiska Institutionen, Uppsala Universitet	Uppsala, Sweden	14.99	38
166	Harris School of Public Policy, University of Chicago	Chicago, Illinois (USA)	14.91	6
167	Center for Operations Research and Econometrics (CORE), Université Catholique de Louvain	Louvain-la-Neuve, Belgium	14.82	38
(167)	Tokyo Center for Economic Research (TCER), Faculty of Economics, University of Tokyo	Tokyo, Japan	14.79	4
168	Resources for the Future (RFF)	Washington, District of Columbia (USA)	14.62	25
169	Institute for International Integration Studies (IIIS), Trinity College, University of Dublin	Dublin, Ireland	14.57	16
170	Center for the Study of Rationality, Hebrew University of Jerusalem	Jerusalem, Israel	14.51	8

Credits:

Citations from CitEc project by José Manuel Barrueco Cruz, University of Valencia, Spain. Hardware provided by Technical University of Valencia, Spain.
Abstract views and downloads statistics from LogEc project by Sune Karlsson, Örebro University, Sweden.
Author registration by Ivan Kumanov, Minsk, Belarus.
Institutions database and ranking computations by Christian Zimmermann, University of Connecticut.
RePEc has been initiated by Thomas Krichel, Long Island University.

We do our best, but we cannot exclude errors.