Download e-book for kindle: Mathematics and Politics: Strategy, Voting, Power and Proof by Alan D. Taylor

By Alan D. Taylor

ISBN-10: 0387776435

ISBN-13: 9780387776439

ISBN-10: 0387776451

ISBN-13: 9780387776453

Mathematics and Politics calls for no necessities in both topic. The underlying philosophy consists of minimizing algebraic computations whereas concentrating on the conceptual features of arithmetic within the context of real-world questions in political technology. This new addition has an extra co-author, Allison Pacelli, and covers six significant issues: social selection, yes-no balloting platforms, political strength, game-theoretic types of foreign clash, equity, and escalation. as well as having new chapters (treating apportionment and clash resolution), the textual content has been commonly reorganized and the variety of routines elevated to over 300.


"Taylor has performed a notable task of unveiling the facility of deductive reasoning in … the strategic offerings actors make in clash occasions … a penetrating research of either real-life and hypothetical situations."

-- Steven Brams, long island University

Alan Taylor’s e-book is thoroughly crafted. he's ever conscious of his viewers, yet relentlessly presses the start scholar to appreciate extra and more."

-- Samuel Merrill III, American Mathematical Monthly

This ebook is a special and priceless resource … insurance is thorough and huge; principles are defined basically and at a suitable mathematical level."

-- Ed Packel, Lake wooded area College

"… arithmetic and Politics is an almost excellent resolution, both for sessions or for the intense specialist who desires to retool. … The writing is crisp, and the feel of pleasure approximately studying arithmetic is seductive."

-- Michael Munger, Chance

" i love this ebook. It’s great arithmetic with severe applications."

-- John Ewing, Indiana University

"Now we've, in Alan Taylor’s publication, an advent to those principles that's delightfully lucid and calls for virtually no mathematical prerequisites."

-- Phillip D. Straffin, collage arithmetic Journal

"[The publication] breaks new floor and will stand because the definitive undergraduate textbook during this zone for rather a few time."

-- Stan Wagon, Macalester College

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Additional resources for Mathematics and Politics: Strategy, Voting, Power and Proof

Example text

SOCIAL CHOICE PROPOSITION 3. The Borda count does not satisfy the Condorcet winner criterion. PROOF. Consider the three alternatives a, b, and c and the following sequence of five preference lists grouped into voting blocs of size three and two. Voters 1–3 Voters 4 and 5 a b c b c a The Borda count produces b as the social choice since it gets a total of 7 points (1 + 1 + 1 + 2 + 2) to 6 points for a (2 + 2 + 2 + 0 + 0) and 2 points for c (0 + 0 + 0 + 1 + 1). However, a is clearly the Condorcet winner, defeating each of the other alternatives by a score of 3 to 2 in one-on-one competitions.

Then, by definition of Condorcet winner, x is the unique winner when Condorcet’s method is used. Briefly, by definition, a Condorcet winner is the unique winner when Condorcet’s method is used. PROPOSITION 3. Sequential pairwise voting with a fixed agenda satisfies the Condorcet winner criterion. PROOF. Assume the social choice procedure being used is sequential pairwise voting with a fixed agenda and assume that we have an arbitrary sequence of preference lists where there is an alternative x that is the Condorcet winner.

Negative Results—Proofs 23 of the procedure alternative b is deleted from all the lists since it has only two first-place votes. This much already shows that the Condorcet winner is not a social choice, and thus the proof is complete. PROPOSITION 5. A dictatorship does not satisfy the Condorcet winner criterion. PROOF. Consider the three alternatives a, b, and c and the following three preference lists: Voter 1 Voter 2 Voter 3 a b c c b a c b a Assume that Voter 1 is the dictator. Then a is the social choice, although c is clearly the Condorcet winner since it defeats both others by a score of 2 to 1.

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Mathematics and Politics: Strategy, Voting, Power and Proof by Alan D. Taylor

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