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Thorwald Nicolaus Tideman (, not ; born August 11, 1943 in
Chicago, Illinois (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
) is a
Georgist Georgism, also called in modern times Geoism, and known historically as the single tax movement, is an economic ideology holding that, although people should own the value they produce themselves, the economic rent derived from Land (economics), ...
economist and professor at
Virginia Tech Virginia Tech (formally the Virginia Polytechnic Institute and State University and informally VT, or VPI) is a public land-grant research university with its main campus in Blacksburg, Virginia. It also has educational facilities in six re ...
. He received his
Bachelor of Arts Bachelor of arts (BA or AB; from the Latin ', ', or ') is a bachelor's degree awarded for an undergraduate program in the arts, or, in some cases, other disciplines. A Bachelor of Arts degree course is generally completed in three or four yea ...
in economics and
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
from
Reed College Reed College is a private liberal arts college in Portland, Oregon. Founded in 1908, Reed is a residential college with a campus in the Eastmoreland neighborhood, with Tudor-Gothic style architecture, and a forested canyon nature preserve at ...
in 1965 and his
PhD PHD or PhD may refer to: * Doctor of Philosophy (PhD), an academic qualification Entertainment * '' PhD: Phantasy Degree'', a Korean comic series * '' Piled Higher and Deeper'', a web comic * Ph.D. (band), a 1980s British group ** Ph.D. (Ph.D. al ...
in economics from the
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park neighborhood. The University of Chicago is consistently ranked among the b ...
in 1969. Tideman was an Assistant Professor of Economics at
Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of highe ...
from 1969-1973, during which time from 1970-1971 he was a Senior Staff Economist for the President's
Council of Economic Advisors The Council of Economic Advisers (CEA) is a United States agency within the Executive Office of the President established in 1946, which advises the President of the United States on economic policy. The CEA provides much of the empirical resea ...
. Since 1973, he has been at Virginia Tech, with various visiting positions at
Harvard Kennedy School The Harvard Kennedy School (HKS), officially the John F. Kennedy School of Government, is the school of public policy and government of Harvard University in Cambridge, Massachusetts. The school offers master's degrees in public policy, publi ...
(1979-1980),
University of Buckingham , mottoeng = Flying on Our Own Wings , established = 1973; as university college1983; as university , type = Private , endowment = , administrative_staff = 97 academic, 103 support , chanc ...
(1985-1986), and the American Institute for Economic Research (1999-2000).


Research

Tideman's academic interests include taxation of land,
voting theory Social choice theory or social choice is a theoretical framework for analysis of combining individual opinions, preferences, interests, or welfares to reach a ''collective decision'' or ''social welfare'' in some sense.Amartya Sen (2008). "Soc ...
, and
political philosophy Political philosophy or political theory is the philosophical study of government, addressing questions about the nature, scope, and legitimacy of public agents and institutions and the relationships between them. Its topics include politics, ...
.


Ranked Pairs

In 1987, he devised the
voting system An electoral system or voting system is a set of rules that determine how elections and referendums are conducted and how their results are determined. Electoral systems are used in politics to elect governments, while non-political elections m ...
called "
ranked pairs Ranked pairs (sometimes abbreviated "RP") or the Tideman method is an electoral system developed in 1987 by Nicolaus Tideman that selects a single winner using votes that express preferences. The ranked-pairs procedure can also be used to create ...
" (or the "Tideman method" or simply "RP"), which is a type of
Condorcet method A Condorcet method (; ) is an election method that elects the candidate who wins a majority of the vote in every head-to-head election against each of the other candidates, that is, a candidate preferred by more voters than any others, whenever ...
. It selects a single winner using votes that express a preference ranking. Ranked pairs can also be used to create a sorted list of winners.


Other research

In 2000, Tideman developed the CPO-STV proportional voting method. Tideman also devised the independence of clones criterion which both of his methods satisfy. He is an associate of the
Earth Rights Institute The Earth Rights Institute was founded by Alanna Hartzok and Annie Goeke in 2002 and is a registered non-profit with offices in Pennsylvania and California and major partners in Senegal and Ivory Coast. Earth Rights Institute has a strong focus o ...
. His book ''Collective Decisions and Voting: The Potential for Public Choice'' was published by Ashgate Publishing in November 2006.


References


External links


Nicolaus Tideman's website
* * 1943 births Living people People from Chicago Reed College alumni Economists from Illinois Virginia Tech faculty Harvard Kennedy School staff Academics of the University of Buckingham Voting theorists Georgist economists 21st-century American economists {{US-economist-stub