Prof. Ruth Ben-Yashar

Telephone

972-3-5318569

Fax

972-3-7384034

Ruth.Ben-Yashar@biu.ac.il

Office

308; Building : 504

Reception Hours

In advance by email

PO Box

Research Categories

Decision Making

Education

B.A., Summa Cum Laude, Bar-Ilan University, Economics and Computer Science

Ph.D., Bar-Ilan University, Economics : Organizational Quality and Optimality of the Decision Making Structure

Post-Doctoral, Tel Aviv University, Department of Business Administration

Academic Affiliations

2000-2007: Lecturer, Department of Economics, Bar-Ilan University,Israel

2007- : Senior Lecturer, Department of Economics, Bar-Ilan University,Israel

Visiting positions

2001-2002: Interdisciplinary Institute of Management, London School of Economics(LSE)

Editorial Activities

Reviewer for:

Journal of Economic Theory.
Public Choice.
American Political Science Review.
Group Decision and Negotiation.
Journal of Politics.
Games and Economic Behavior.
Mathematical Social Sciences
Journal of Economic Behavior and Organization .
Southern Economic Journal .
International Journal of Manpower .
Social Choice and Welfare .
Economics of Governance .
European Journal of Political Economy .
Economic Theory .
Management Science .

Courses Taught

Undergraduate: B.A.
- statistics I / II
- Game Theory
- Mathematics
- Introduction to Micro-Economics
- Introduction to Macro-Economics
Graduate: M.A. Ph.D.
- Decision-Making
- Social Choice

Awards /Honors

1987 : B.A. studies distinction by Knesset Committee.

1994 : Post-Doctoral Fellowship, Council for Higher Education, Planning and Grants Committee

GRANT
2014 : Financial support from the Research Institute for Econometrics, Bar-Ilan University.

Presentations

"Sovereign Debt Assistance and Democratic Decision Making"(online presented), 31st EBES Conference – Warsaw,2020. Best paper award.
"The Effect of Democratic Decision Making on Investment in Reputation"(poster presented), Economic and Business ,2018.
"Conditioning Sovereign Debt Relief on Democratization"(presented by S. Nitzan), Hitotsubashi Institute of Advanced Study, Hitotsubashi University, Tokyo, November 2018.
"Conditioning Sovereign Debt Relief on Democratization"(presented by S. Nitzan), Institute of Social and Economic Research, Osaka University, Osaka, November 2018.
"Conditioning Sovereign Debt Relief on Democratization"(presented by S. Nitzan),Department of Economics, Nanzan University, Nagoya, November 2018,.
"Conditioning Sovereign Debt Relief on Democratization"(presented by S. Nitzan),Department of Economics, Kobe University, Kobe, November 2018, .
"Conditioning Sovereign Debt Relief on Democratization"(presented by S. Nitzan),Department of Economics, Niigata University, Niigata, November 2018,.
"Do Consistent Majority Judgments Guarantee the Truth?" (presented by S. Nitzan), Research Workshop of the Israel Science Foundation and the Research Institute for Econometrics at Bar-Ilan University, 2014.
"Optimal Preference Aggregation under Naive Probabilities" (presented by E. Baharad), The 29^th Israeli Economic Association Conference, 2013.
"On the Optimal Allocation of Committee Members", The 26^th Israeli Economic Association Conference, 2010.
"The Condorcet Jury Theorem and Extension of the Franchise with Rationally Ignorant Voters"(presented by M. Zehavi), European Public Choice Society ,2009 .
"The Robustness of the Optimal Weighted Majority Rule to Probabilities Distortion", The 22^th Israeli Economic Association Conference, 2006.
"First and Second Best Voting Rules in Committees" , The Hebrew University of Jerusalem, the Faculty of Agricultural, Food & Environmental Quality Sciences, 2006.
"First and Second Best Voting Rules in Committees" , The 21^th Israeli Economic Association Conference, 2005.
"First and Second Best Voting Rules in Committees"(presented by I. Milchtaich), The 2004 Israeli Game Theory Conference at Tel Aviv, 2004.
"Optimal Collective Dichotomous Choice Under Quota Constraints" , The 15^th Israeli Economic Association Conference, 1999.
"The Validity of the Nonasymptotic Part of Condorcet’s Jury Theorem", INFORMS Israel Meeting, Tel-Aviv University, 1998.
"The Validity of the Nonasympotic Part of Condorcet’s Jury Theorem" , European Public Choice Society, Goteborg University, Sweden, 1998.
"Pre-Contractual Reliance"(Discussant), Intermediation and Contracts, Tel-Aviv University, 1997 .
"Investment Criteria in Single and Multi-Member Economic Organizations" , Tel-Aviv University, 1996.
"Investment in Human Capital Policy Within a Team of Decision Makers"(presented by J. Paroush), Forty-Second International Atlantic Economic Conference, Washington DC, USA, 1996.
"Investment Criteria in Single- and Multi-Member Economic Organizations"(presented by S. Nitzan), European Economic Association, Turkey, 1996.
"The Optimal Decision Rule for Fixed Size Committees in Dichotomous Choice Situations - The General Result" , The Fourth Israeli Conference on Judgement and Decision-Making, Ben-Gurion University, 1990.

Publications

" Should Defense Lawyers and Prosecutors be Appointed as Judges? ", Law Probability and Risk, forthcoming (with M. Krausz).
"Variable Competence and Collective Performance: Unanimity vs. Simple Majority Rule ", Group Decision and Negotiation, 2020, 29, 157-167 (with E. Baharad and S. Nitzan).
" On the Merit of Non-Specialization in the Context of Majority Voting ", Journal of Mathematical Economics, 2020, 87, 128-133 (with E. Baharad and T. Patal).
" Skill, Value and Remuneration in Committees ", Economics Letters, 2019, 174, 93-95 (with S. Nitzan).
" The Effect of Democratic Decision Making on Investment in Reputation ", Public Choice, 2018, 177(1), 155-164 (with M. Krausz and S. Nitzan).
" Government Loan Guarantees and the Credit Decision-Making Structure ", Canadian Journal of Economics, 2018, 51(2), 607-625 (with M. Krausz and S. Nitzan).
" Are Two Better than One? ", Public Choice, 2017, 171(3), 323-329 (with S. Nitzan).
" Is Diversity in Capabilities Desirable when Adding Decision Makers? ", Theory and Decision, 2017, 82(3), 395-402 (with S. Nitzan).
" The Unanimity Rule and Extremely Asymmetric Committees ", Journal of Mathematical Economics, 2016, 64, 107-112 (with L. Danziger).
" When is Voting Optimal? ", Economic Theory Bulletin, 2015, 3, 341-356 (with L. Danziger).
" On the Optimal Composition of Committees ", Social Choice and Welfare, 2014, 43, 973-980 (with L. Danziger).
" The Generalized Homogeneity Assumption and the Condorcet Jury Theorem ", Theory and Decision, 2014, 77(2), 237-241.
" On the Significance of the Prior of a Correct Decision in Committees ", Theory and Decision, 2014, 76(3), 317-327 (with S. Nitzan).
" Is Specialization Desirable in Committee Decision Making?", Theory and Decision, 2012, 72(3), 341-357 (with W. Koh and S. Nitzan).
" Symmetric and Asymmetric Committees ", Journal of Mathematical Economics, 2011, 47, 440-447 (with L. Danziger).
" The Condorcet Jury Theorem and Extension of the Franchise with Rationally Ignorant Voters ", Public Choice, 2011, 148, 435-443 (with M. Zahavi).
" The Robustness of the Optimal Weighted Majority Rule to Probabilities Distortion ", Public Choice, 2009, 139, 53-59 (with E. Baharad).
" First and Second Best Voting Rules in Committees ", Social Choice and Welfare , 2007, 29(3), 453-486 (with I. Milchtaich).
" Comparison of Optimal Cutoff Points for Single and Multiple Tests in Personnel Selection ", Psicothema, 2006, 18, 652-660 (with S. Nitzan and H. Vos).
" Information is Important to Condorcet Jurors ", Public Choice, 2006, 127, 313-327.
" Investment in Human Capital in Team Members who are Involved in Collective Decision Making ", Journal of Public Economic Theory, 2003, 5(3), 527-539 (with J. Paroush).
" Optimal Collective Dichotomous Choice under Quota Constraints ", Economic Theory , 2002, 19, 839-852 (with S. Kraus).
" Are Referees Sufficiently Informed about the Editor’s Practice?", Theory and Decision, 2001, 51(1), 1-11 (with S. Nitzan).
" Optimal Collective Dichotomous Choice under Partial Order Constraints ", Mathematical Social Science , 2001, 41, 349-364 (with S. Khuller and S. Kraus).
" Optimal Decision Rules for Fixed-Size Committees in Polychotomous Choice Situations ", Social Choice and Welfare, 2001, 18, 737-746 (with J. Paroush).
" Investment Criteria in Single- and Multi-Member Economic Organizations ", Public Choice, 2001, 109, 1-13 (with S. Nitzan).
" The Invalidity of the Condorcet Jury Theorem under Endogenous Decisional Skills ", Economics of Governance, 2001, 2, 243-249 (with S. Nitzan).
" The Robustness of Optimal Organizational Architectures: A Note on Hierarchies and Polyarchies ", Social Choice and Welfare, 2001, 18(1), 155-163 (with S. Nitzan).
" A Nonasymptotic Condorcet Jury Theory ", Social Choice and Welfare, 2000, 17, 189-199 (with J. Paroush).
" Quality and Structure of Organizational Decision-Making ", Journal of Economic Behavior and Organization, 1998, 36, 521-534 (with S. Nitzan).
" The Admittance Criteria in Centralized and Decentralized Classification Systems ", The Economic Quarterly, 1997, 44 (3), 337-350 (with S. Nitzan).
"The Optimal Decision Rule for Fixed Size Committees in Dichotomous Choice Situations - The General Result ", International Economic Review, 1997, 38(1), 175-186 (with S. Nitzan).

Last Updated Date : 23/11/2022

Prof. Ruth Ben-Yashar

Education

Courses Taught

Undergraduate: B.A.

Graduate: M.A. Ph.D.

Main Research Interests: