2003-01 Auctions in Ohio Real Estate
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MICROECONOMICS and POLICY ANALYSIS - U8213 Professor Rajeev H
MICROECONOMICS AND POLICY ANALYSIS - U8213 Professor Rajeev H. Dehejia Class Notes - Spring 2001 Auctions Wednesday, February 14 Reading: Handout, Thaler, Milgram There are two basic forms of auctions: Sealed bid submissions and open bids. In a sealed bid auction individuals do not know what others are bidding. Two types of Sealed Bid Auctions: 1st Price sealed bid auction: The highest bid submitted will be the winning bid. The winner pays what he/she bid. 2nd Price sealed bid auction: Everyone submits sealed bids and the winner is the one who submits the highest bid BUT the price paid by the winner is the 2nd highest bid submitted. Two types of open auctions: English auction: The bidding starts low and incrementally rises until someone is the highest bidder and no one is willing to outbid the highest bidder. Dutch auction: The price starts very high and is keeps going down until someone bids. The first person to bid wins. Why Study Auctions? 1) Auctions can be an efficient method of valuing goods. For example: rights to air waves, signals and bandwidth. The government auctioned off parts of the spectrum in anticipation of new technology. The auctions were appealing because well- structured auctions get people to reveal the true valuation of the good. The company (private entity) actually ends up paying to the government what the good is worth to them. It turned out with these auctions that the willingness to pay for a slice of the spectrum, as revealed by the auction outcome, was much higher than expected. 2) Procurement: Governments and entities want to procure goods and services at the lowest possible price (like an auction in reverse). -
A Fair and Secure Reverse Auction for Government Procurement
sustainability Article A Fair and Secure Reverse Auction for Government Procurement Chia-Chen Lin 1,*, Ya-Fen Chang 2, Chin-Chen Chang 3 and Yao-Zhu Zheng 4 1 Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan 2 Department of Computer Science and Information Engineering, National Taichung University of Science and Technology, Taichung 40401, Taiwan; [email protected] 3 Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan; [email protected] 4 Department of Computer Science, National Tsing Hua University, Hsinchu 30013, Taiwan; [email protected] * Correspondence: [email protected] Received: 21 August 2020; Accepted: 12 October 2020; Published: 16 October 2020 Abstract: With the development of e-commerce, the electronic auction is attracting the attention of many people. Many Internet companies, such as eBay and Yahoo!, have launched online auction systems. Many researchers have studied the security problems of electronic auction systems, but few of them are multi-attribute-based. In 2014, Shi proposed a provable secure, sealed-bid, and multi-attribute auction protocol based on the semi-honest model. We evaluated this protocol and found that it has some design weaknesses and is vulnerable to the illegal operations of buyers, which results in unfairness. In this paper, we improved this protocol by replacing the Paillier’s cryptosystem with the elliptic curve discrete (ECC), and we designed a novel, online, and multi-attribute reverse-auction system using the semi-honest model. In our system, sellers’ identities are not revealed to the buyers, and the buyers cannot conduct illegal operations that may compromise the fairness of the auction. -
Putting Auction Theory to Work
Putting Auction Theory to Work Paul Milgrom With a Foreword by Evan Kwerel © 2003 “In Paul Milgrom's hands, auction theory has become the great culmination of game theory and economics of information. Here elegant mathematics meets practical applications and yields deep insights into the general theory of markets. Milgrom's book will be the definitive reference in auction theory for decades to come.” —Roger Myerson, W.C.Norby Professor of Economics, University of Chicago “Market design is one of the most exciting developments in contemporary economics and game theory, and who can resist a master class from one of the giants of the field?” —Alvin Roth, George Gund Professor of Economics and Business, Harvard University “Paul Milgrom has had an enormous influence on the most important recent application of auction theory for the same reason you will want to read this book – clarity of thought and expression.” —Evan Kwerel, Federal Communications Commission, from the Foreword For Robert Wilson Foreword to Putting Auction Theory to Work Paul Milgrom has had an enormous influence on the most important recent application of auction theory for the same reason you will want to read this book – clarity of thought and expression. In August 1993, President Clinton signed legislation granting the Federal Communications Commission the authority to auction spectrum licenses and requiring it to begin the first auction within a year. With no prior auction experience and a tight deadline, the normal bureaucratic behavior would have been to adopt a “tried and true” auction design. But in 1993 there was no tried and true method appropriate for the circumstances – multiple licenses with potentially highly interdependent values. -
Lecture Notes
601.436/636 Algorithmic Game Theory Lecturer: Michael Dinitz Topic: Online Auctions Date: 4/28/20 Scribe: Michael Dinitz 24.1 Introduction So far all of our mechanism have been \one-shot": we run an auction by soliciting bids and then deciding on an outcome and prices. This is intuitively a pretty good model of what we think of as an \auction". But let's think of another setting: we're selling items in a store. Then players will enter our store, make us an offer, and leave the store. Clearly if we sell an item to a player then we cannot later sell the same item to someone else, and if a player leaves the store then we cannot afterwards sell them the item. So our decisions are irrevocable. This is a classical setting for online algorithms, so today we'll be considering online mechanisms which combine online algorithms with incentives. 24.2 Example Suppose that we're selling two identical items. Each bidder wants one item (they don't care which) and has a valuation for how much they value an item (the same value for both, since they're identical), but also has an arrival and departure time. Suppose that there are three bidders. Bidder 1 has a valuation of 100, arrival time of noon (12pm), and departure time of 2pm. Bidder 2 has valuation 80, arrival time of noon, and departure time of 2pm. Bidder 3 has valuation of 60, arrival time of 1pm, and departure time of 2pm. If we were in the old setting, without arrival and departure times, it's pretty easy to use VCG to figure out what to do. -
Shill Bidding in English Auctions
Shill Bidding in English Auctions Wenli Wang Zoltan´ Hidvegi´ Andrew B. Whinston Decision and Information Analysis, Goizueta Business School, Emory University, Atlanta, GA, 30322 Center for Research on Electronic Commerce, Department of MSIS, The University of Texas at Austin, Austin, TX 78712 ¡ wenli [email protected] ¡ [email protected] [email protected] First version: January, 2001 Current revision: September 6, 2001 Shill bidding in English auction is the deliberate placing bids on the seller’s behalf to artificially drive up the price of his auctioned item. Shill bidding has been known to occur in auctions of high-value items like art and antiques where bidders’ valuations differ and the seller’s payoff from fraud is high. We prove that private- value English auctions with shill bidding can result in a higher expected seller profit than first and second price sealed-bid auctions. To deter shill bidding, we introduce a mechanism which makes shill bidding unprofitable. The mechanism emphasizes the role of an auctioneer who charges the seller a commission fee based on the difference between the winning bid and the seller’s reserve. Commission rates vary from market to market and are mathematically determined to guarantee the non-profitability of shill bidding. We demonstrate through examples how this mechanism works and analyze the seller’s optimal strategy. The Internet provides auctions accessible to the general pub- erature on auction theories, which currently are insufficient to lic. Anyone can easily participate in online auctions, either as guide online practices. a seller or a buyer, and the value of items sold ranges from a One of the emerging issues is shill bidding, which has become few dollars to millions. -
English Versus Vickrey Auctions with Loss Averse Bidders
English versus Vickrey Auctions with Loss Averse Bidders Jonas von Wangenheim School of Business & Economics Discussion Paper Economics 2019/1 English versus Vickrey Auctions with Loss Averse Bidders∗ Jonas von Wangenheimyz December 19, 2018 Abstract Evidence suggests that people evaluate outcomes relative to expecta- tions. I analyze this expectation-based loss aversion [K}oszegiand Rabin (2006, 2009)] in the context of dynamic and static auctions, where the ref- erence point is given by the (endogenous) equilibrium outcome. If agents update their reference point during the auction, the arrival of informa- tion crucially affects equilibrium behavior. Consequently, I show that| even with independent private values|the Vickrey auction yields strictly higher revenue than the English auction, violating the well known revenue equivalence. Thus, dynamic loss aversion offers a novel explanation for empirically observed differences between these auction formats. Keywords: Vickrey auction, English auction, expectation-based loss aver- sion, revenue equivalence, dynamic loss aversion, personal equilibrium JEL classification: D03, D44 ∗I thank Yves Breitmoser, Fran¸coiseForges, Matthias Hammer, Paul Heidhues, Radosveta Ivanova-Stenzel, Johannes Johnen, Thomas Mariotti, Antonio Rosato, Thomas Schacherer, Ran Spiegler, Roland Strausz, and Georg Weizs¨acker for helpful comments, as well as participants at the 11th World Congress of the Econometric Society (Montreal), the 2015 EEA conference (Mannheim), the Applied Theory Workshop at Toulouse School of Economics, the 2016 EARIE conference (Lisbon), the CRC conference in Berlin, the ZEW Research Seminar, and the 2017 Annual Conference of the Verein f¨urSocialpolitik (Vienna). I gratefully acknowledge financial support of the German Research Foundation through CRC TRR 190 and RTG 1659. -
Game Theory 2021
More Mechanism Design Game Theory 2021 Game Theory 2021 Ulle Endriss Institute for Logic, Language and Computation University of Amsterdam Ulle Endriss 1 More Mechanism Design Game Theory 2021 Plan for Today In this second lecture on mechanism design we are going to generalise beyond the basic scenario of auctions|as much as we can manage: • Revelation Principle: can focus on direct-revelation mechanisms • formal model of direct-revelation mechanisms with money • incentive compatibility of the Vickrey-Clarke-Groves mechanism • other properties of VCG for special case of combinatorial auctions • impossibility of achieving incentive compatibility more generally Much of this is also (somewhat differently) covered by Nisan (2007). N. Nisan. Introduction to Mechanism Design (for Computer Scientists). In N. Nisan et al. (eds.), Algorithmic Game Theory. Cambridge University Press, 2007. Ulle Endriss 2 More Mechanism Design Game Theory 2021 Reminder Last time we saw four auction mechanisms for selling a single item: English, Dutch, first-price sealed-bid, Vickrey. The Vickrey auction was particularly interesting: • each bidder submits a bid in a sealed envelope • the bidder with the highest bid wins, but pays the price of the second highest bid (unless it's below the reservation price) It is a direct-revelation mechanism (unlike English and Dutch auctions) and it is incentive-compatible, i.e., truth-telling is a dominant strategy (unlike for Dutch and FPSB auctions). Ulle Endriss 3 More Mechanism Design Game Theory 2021 The Revelation Principle Revelation Principle: Any outcome that is implementable in dominant strategies via some mechanism can also be implemented by means of a direct-revelation mechanism making truth-telling a dominant strategy. -
And Information Aggregation)
Introduction to Auctions (and information aggregation) Saša Pekeč Decision Sciences The Fuqua School of Business Duke University October 29, 2008 Outline of the Topics •Scoring rules • Prediction markets • Auctions: clean and oversimplifying view • Auctions: messy but closer to reality • Information aggregation results Information Aggregation • Surveys • Opinion Polls • Aggregating votes / ratings / review scores / … • Eliciting and aggregating expert opinions … Issues: • info quantity • info quality • representativeness • incentives Single Data Point Info Quality •stats • machine learning Add incentives: Example: Binary event E (thumbs up/down, yes/no, 0/1) Elicit probability estimate of E=1: p. Brier score: B(p)= 1-(E-p)2 If r reported instead of p: E[B(r)|p]= p(1-(1-r)2)+(1-p)(1-r2) maximized at r=p ( d/dr : 2p(1-r)-2(1-p)r ) Truthful reporting maximizes Brier score Scoring Rules • Consider a probability forecast for a discrete event with n possible outcomes (“states of the world”). • Let ei = (0, ..., 1, ..., 0) denote the indicator vector for the ith state (where 1 appears in the ith position). • Let p = (p1, ..., pn) denote the forecaster’s true subjective probability distribution over states. • Let r = (r1, ..., rn) denote the forecaster’s reported distribution (if different from p). (Also, let q = (q1, ..., qn) denote a baseline distribution upon which the forecaster seeks to improve.) Slide thx to R.Nau Proper Scoring Rules • The scoring rule S is [strictly] proper if S(p) ≥ [>] S(r, p) for all r [≠p], i.e., if the forecaster’s expected score is [uniquely] maximized when she reports her true probabilities. -
Spectrum Auctions from the Perspective of Matching
Spectrum Auctions from the Perspective of Matching Paul Milgrom and Andrew Vogt May 5, 2021 1 Introduction In July 1994, the United States Federal Communications Commission (FCC) conducted the first economist-designed auction for radio spectrum licenses. In the years since, governments worldwide have come to rely on auction mecha- nisms to allocate { and reallocate { rights to use electromagnetic frequencies. Over the same period, novel uses for spectrum have dramatically increased both the demand for licenses and auction prices, drawing continued attention to the nuances of spectrum markets and driving the development of spectrum auction design. In August 2017, the FCC completed the Broadcast Incentive Auction, a two-sided repurposing of an endogenously-determined quantity of spectrum that ranks among the most complex feats of economic engineering ever under- taken. The next generations of mobile telecommunications are poised to extend this growth, and to demand further innovation in the markets and algorithms that are used to assign spectrum licenses. What does all of this have to do with matching theory? Spectrum auctions differ from canonical matching problems in meaningful ways. Market designers often emphasize that a key element of matching markets is the presence of preferences on both sides of the market. In a marriage, for example, it is not enough that you choose your spouse; your spouse must also choose you. This two-sided choice structure applies also to matches between students and schools and between firms and workers, but not to matches between telecommunications companies and radio spectrum licenses. It is a different matching element that is often critically important in ra- dio spectrum auctions. -
Foreclosure Auctions∗
Foreclosure Auctions∗ Andras Niedermayery Artyom Shneyerovz Pai Xux This Draft: February 11, 2016 Abstract We develop a novel theory of real estate foreclosure auctions, which have the special feature that the lender acts as a seller for low and as a buyer for high prices. The theory yields several empirically testable predictions concerning the strategic behavior of the agents when the seller has an informational advantage. Using novel data from Palm Beach County (FL, US), we find evidence of asymmetric information, with the lender being the informed party. Moreover, the data are consistent with moral hazard in mortgage securitization: banks collect less information about the value of the mortgage collateral. Keywords: foreclosure auctions, asymmetric information, bunching, discontinuous strategies, securitization JEL Codes: C72, D44, D82, G21 ∗We thank Matt Backus, Brent Hickman, Tanjim Hossain, Matthias Lang, Philipp Schmidt-Dengler, Hidenori Takahashi, Stefan Terstiege, Thomas Tr¨oger,Ernst-Ludwig von Thadden, Lixin Ye and participants of IIOC 2014 in Chicago, the 2014 Conference on \Auctions, Competition, Regulation and Public Policy" in Lancaster, EARIE 2014 in Milan, MaCCI IO Day 2014 in Mannheim, SFB TR 15 Workshop 2015 in Bonn, the 2015 MaCCI Summer Institute in Erfstadt, the Econometric Society World Congress 2015 in Montreal, the EEA Meeting 2015 in Mannheim, seminars at the Universities of Konstanz, Mannheim, Melbourne, Toronto, the Paris School of Economics, Concordia University, and WHU (Otto Bensheim School of Management) for helpful comments. The first author acknowledges financial support from the Deutsche Forschungsgemeinschaft through SFB-TR 15. yEconomics Department, University of Mannheim, L7, 3-5, D-68131 Mannheim, Germany. -
11032 Catalog Cover
I ISSUE 21 S S U E • 2 1 • S S P PR R I SALE CALENDAR 2015 NG 2015 I STAMPS N 16 April The Neville Polakow FRPSL Collection of Northern Rhodesia London 15022 G 7/8 May The Philatelic Collector’s Series Sale London 15023 • 16 May The Philatelic Collector’s Series Sale Hong Kong CSS12 2 19 May Western Australia from the Vestey Collection London 15024 0 20 May Specialised Great Britain Stamps and Postal History London 15025 1 20 May Swaziland, The Award-Winning Collection formed by Peter van der Molen, RDPSA, FRPSL London 15035 5 June The Philatelic Collector’s Series Sale New York 151 Stamps Coins Banknotes Medals Bonds & Shares Autographs Books Wines 15/16 July The Philatelic Collector’s Series Sale London 15026 July Postal History and Historical Documents London 15037 17/18 August Stamps and Covers of South East Asia sale during the International Exhibition Singapore 15027 COINS 25/26 March Ancient, British & Foreign Coins and Commemorative Medals London 15004 T 2 April The Numismatic Collector’s Series Sale Hong Kong CSS15 14 May The Slaney Collection of English Coins - Part 2 London 15031 H 3/4 June The Numismatic Collector’s Series Sale New York 322 E 1/2 July Ancient, British & Foreign Coins and Commemorative Medals London 15005 27 August The Numismatic Collector’s Series Sale Hong Kong CSS17 BANKNOTES S 2 April The Numismatic Collector’s Series Sale Hong Kong CSS15 P 28 April Queen Elizabeth II: A Banknote Collection London 15033 28 April The Michael Jowett Collection of African Banknotes London 15032 I 29 April The Uncirculated -
An Experimental Study of the Generalized Second Price Auction
An experimental study of the generalized second price auction. Jinsoo Bae John H. Kagel The Ohio State University The Ohio State University 6/18/2018 Abstract We experimentally investigate the Generalized Second Price (GSP) auction used to sell advertising positions in online search engines. Two contrasting click through rates (CTRs) are studied, under both static complete and dynamic incomplete information settings. Subjects consistently bid above the Vikrey-Clarke-Grove’s (VCG) like equilibrium favored in the theoretical literature. However, bidding, at least qualitatively, satisfies the contrasting outcomes predicted under the two contrasting CTRs. For both CTRs, outcomes under the static complete information environment are similar to those in later rounds of the dynamic incomplete information environment. This supports the theoretical literature that uses the static complete information model as an approximation to the dynamic incomplete information under which advertising positions are allocated in field settings. We are grateful to Linxin Ye, Jim Peck, Paul J Healy, Kirby Nielsen, Ritesh Jain for valuable comments. This research has been partially supported by NSF grant SES Foundation, SES- 1630288 and grants from the Department of Economics at The Ohio state University. Previous versions of this paper were reported at the 2017 ESA North American Meetings in Richmond, VA. We alone are responsible for any errors or omissions in the research reported. 1 1. Introduction Search engines such as Google, Yahoo and Microsoft sell advertisement slots on their search result pages through auctions, among which the Generalized Second Price (GSP) auction is the most prevalent format. Under GSP auctions, advertisers submit a single per-click bid.