Digital Commons Network^™

Gnss Spoof Detection Based On Pseudoranges From Multiple Receivers, David S. Radin, Peter F. Swaszek, Kelly C. Seals, Richard J. Hartnett

Electrical, Computer, and Biomedical Engineering Faculty Publications

Spoofing is the common term used for describing the intentional broadcasting of false radio frequency signals intended to disrupt and mislead systems that depend on accurate position, navigation, and timing information provided by Global Navigation Satellite Systems (GNSS). Spoofing is an increasingly recognized threat garnering increased interest from researchers and users, both military and civilian. This paper presents a GNSS spoof detection algorithm that exploits the geometric distribution of a horizontal array of GNSS receiver antennae and the geometric configuration of visible navigation satellites. Using a Neyman-Pearson hypothesis testing formulation, a spatial correlation test is developed that can accurately and …

The Road Was Paved With Good Intentions, Kristina Dreifuerst, Suzie Kardong-Edgren

College of Nursing Faculty Research and Publications

No abstract provided.

Second Hamiltonian Cycles In Claw-Free Graphs, Hossein Esfandiari, Colton Magnant, Pouria Salehi Nowbandegani, Shirdareh Haghighi

Theory & Applications of Graphs

Sheehan conjectured in 1975 that every Hamiltonian regular simple graph of even degree at least four contains a second Hamiltonian cycle. We prove that most claw-free Hamiltonian graphs with minimum degree at least 3 have a second Hamiltonian cycle and describe the structure of those graphs not covered by our result. By this result, we show that Sheehan’s conjecture holds for claw-free graphs whose order is not divisible by 6. In addition, we believe that the structure that we introduce can be useful for further studies on claw-free graphs.

Bounds For The Zero Forcing Number Of Graphs With Large Girth, Randy Davila, Franklin Kenter

Theory & Applications of Graphs

The zero-forcing number, Ζ(G) is an upper bound for the maximum nullity of all symmetric matrices with a sparsity pattern described by the graph. A simple lower bound is δ ≤ Ζ(G) where δ is the minimum degree. An improvement of this bound is provided in the case that G has girth of at least 5. In particular, it is shown that 2δ − 2 ≤ Ζ(G) for graphs with girth of at least 5; this can be further improved when G has a small cut set. Lastly, a conjecture is made regarding a lower bound for Ζ(G) as a …

Scheduling N Burgers For A K-Burger Grill: Chromatic Numbers With Restrictions, Peter Johnson, Xiaoya Zha

Theory & Applications of Graphs

The chromatic number has a well-known interpretation in the area of scheduling. If the vertices of a finite, simple graph are committees, and adjacency of two committees indicates that they must never be in session simultaneously, then the chromatic number of the graph is the smallest number of hours during which the committees/vertices of the graph may all have properly scheduled meetings of one continuous hour each. Slivnik [3] showed that the fractional chromatic number can be similarly characterized. In that characterization, the meetings are allowed to be broken into a finite number of disjoint intervals. Here we consider chromatic …

Path-Tables Of Trees: A Survey And Some New Results, Kevin Asciak

Theory & Applications of Graphs

The (vertex) path-table of a tree Τ contains quantitative information about the paths in Τ. The entry (i,j) of this table gives the number of paths of length j passing through vertex ^vi. The path-table is a slight variation of the notion of path layer matrix. In this survey we review some work done on the vertex path-table of a tree and also introduce the edge path-table. We show that in general, any type of path-table of a tree Τ does not determine Τ uniquely. We shall show that in trees, the number of paths passing through …

Connection And Separation In Hypergraphs, Mohammad A. Bahmanian, Mateja Sajna

Theory & Applications of Graphs

In this paper we study various fundamental connectivity properties of hypergraphs from a graph-theoretic perspective, with the emphasis on cut edges, cut vertices, and blocks. We prove a number of new results involving these concepts. In particular, we describe the exact relationship between the block decomposition of a hypergraph and the block decomposition of its incidence graph.

Some Problems In The Representation Theory Of Simple Modular Lie Algebras, Georgia Benkart, Jorg Feldvoss

University Faculty and Staff Publications

No abstract provided.

Children With Sli Exhibit Delays Resolving Ambiguous Reference, Julie M. Estis, Brenda L. Beverly

University Faculty and Staff Publications

Fast mapping weaknesses in children with specific language impairment (SLI) may be explained by differences in disambiguation, mapping an unknown word to an unnamed object. The impact of language ability and linguistic stimulus on disambiguation was investigated. Sixteen children with SLI (8 preschool, 8 school-age) and sixteen typically developing age-matched children selected referents given familiar and unfamiliar object pairs in three ambiguous conditions: phonologically distinct word (PD), phonologically similar word (PS), no word (NW). Preschoolers with SLI did not disambiguate, unlike typically developing age-matched participants, who consistently selected unfamiliar objects given PD. School-age children with SLI disambiguated given PD. Delays …

Leading Change In The System Of Scholarly Communication: A Case Study Of Engaging Liaison Librarians For Outreach To Faculty, Kara Josephine Malenfant

Student Articles, Chapters, Presentations, Learning Objects

This narrative, single-case study examines how liaison librarians at the University of Minnesota (UMN) came to include advocating for reform of the scholarly communication system among their core responsibilities. While other libraries may hire a coordinator or rely on a committee to undertake outreach programs, UMN has defined baseline expertise in scholarly communication for all librarians who serve as liaisons to disciplinary faculty members. By “mainstreaming” scholarly communication duties, UMN is declaring these issues central to the profession.1 This intrinsic study uses evidence gathered from open-ended interviews with three participants, supplemented by documentation. It explores the context of these changes, …

An Extensible And Successful Method Of Identifying Collaborators For National Library Of Medicine Informationist Projects, Jeff D. Williams

Student Articles, Chapters, Presentations, Learning Objects

Question/Purpose: The New York University (NYU) Health Sciences Library used a new method to arrange in-depth discussions with basic science researchers. The objective was to identify collaborators for a new National Library of Medicine administrative supplement. Setting: The research took place at the NYU Health Sciences Library. Methods: Using the National Institutes of Health (NIH) RePORTER, forty-four researchers were identified and later contacted through individualized emails. Results: Nine researchers responded to the email followed by six in-person or phone discussions. At the conclusion of this process, two researchers submitted applications for supplemental funding, and both of these applications were successful. …

The Race Controversy In Amerian Education, Lillian Dowdell Drakeford

Student Book Gallery

From the Publisher:

"In this unique two-volume work, expert scholars and practitioners examine race and racism in public education, tackling controversial educational issues such as the school-to-prison pipeline, charter schools, school funding, affirmative action, and racialized curircula."

From the AU Library:

This title is available in ebook format for Antioch University Library Patrons. Permalink for this ebook: AueID login required http://antioch.idm.oclc.org/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=1022569&site=ehost-live&scope=site

Table of Contents attached below

About the Editor:

This 2-volume book from the Praeger series, Racism in American Institutions, is edited by Dr. Lillian Dowdell Drakeford, a 2010 graduate of the PhD Program in Leadership and Change at …

Sharing As Risk Pooling In A Social Dilemma Experiment, Todd L. Cherry, E. Lance Howe, James J. Murphy

ESI Working Papers

In rural economies with missing or incomplete markets, idiosyncratic risk is frequently pooled through informal networks. Idiosyncratic shocks, however, are not limited to private goods but can also restrict an individual from partaking in or benefiting from a collective activity. In these situations, a group must decide whether to provide insurance to the affected member. In this paper, we describe results of a laboratory experiment designed to test whether a simple sharing institution can sustain risk pooling in a social dilemma with idiosyncratic risk. We test whether risk can be pooled without a commitment device and, separately, whether effective risk …

On The Merit Of Equal Pay: When Influence Activities Interact With Incentive Setting, Brice Corgnet, Ludivine Martin, Peguy Ndodjang, Angela Sutan

ESI Working Papers

Influence costs models predict that organizations should limit managerial discretion to deter organizational members from engaging in wasteful politicking activities. We test this conjecture in a controlled, yet realistic, work environment in which we allow employees to influence managers’ decisions about rewards. We find that influence activities are pervasive and significantly lower organizational performance. Organizational performance suffers because principals offer weaker incentives when influence activities are allowed than when they are not. Importantly, we show that equal pay incentive schemes perform better when influence activities are available than when they are not. Our results thus support the idea that prevalent …

The Cognitive Basis Of Social Behavior: Cognitive Reflection Overrides Antisocial But Not Always Prosocial Motives, Brice Corgnet, Antonio M. Espín, Roberto Hérnan-Gonzalez

ESI Working Papers

Even though human social behavior has received considerable scientific attention in the last decades, its cognitive underpinnings are still poorly understood. Applying a dual-process framework to the study of social preferences, we show in two studies that individuals with a more reflective/deliberative cognitive style, as measured by scores on the Cognitive Reflection Test (CRT), are more likely to make choices consistent with “mild” altruism in simple non-strategic decisions. Such choices increase social welfare by increasing the other person’s payoff at very low or no cost for the individual. The choices of less reflective individuals (i.e. those who rely more heavily …

Generalizations Of The General Lotto And Colonel Blotto Games, Dan Kovenock, Brian Roberson

ESI Working Papers

In this paper, we generalize the General Lotto game (budget constraints satisfied in expectation) and the Colonel Blotto game (budget constraints hold with probability one) to allow for battlefield valuations that are heterogeneous across battlefields and asymmetric across players, and for the players to have asymmetric resource constraints. We completely characterize Nash equilibrium in the generalized version of the General Lotto game and then show how this characterization can be applied to identify equilibria in the Colonel Blotto version of the game. In both games, we find that there exist sets of non-pathological parameter configurations of positive Lebesgue measure with …

The Impact Of Social Information On The Voluntary Provision Of Public Goods: A Replication Study, James J. Murphy, Nomin Batmunkh, Ben Nilson, Samantha Ray

ESI Working Papers

Shang and Croson (2009) found that providing information about the donation decisions of others can have a positive impact on individual donations to public radio. In this study, we attempted to replicate their results, however, we found no evidence of that social comparisons affected donation decisions. Most of our donors were renewing members, a group which Shang and Croson also found were not influenced by social information.

Revisiting The Tradeoff Between Risk And Incentives: The Shocking Effect Of Random Shocks, Brice Corgnet, Roberto Hérnan-Gonzalez

ESI Working Papers

Despite its central role in the theory of incentives, empirical evidence of a tradeoff between risk and incentives remains scarce. We reexamine this empirical puzzle in a controlled laboratory environment so as to isolate possible confounding factors encountered in the field. In line with the principal-agent model, we find that principals increase fixed pay while lowering performance pay when the relationship between effort and output is noisier. Unexpectedly, agents produce substantially more in the noisy environment than in the baseline despite lesser pay for performance. We show that this result can be accounted for by introducing agents’ loss aversion in …

An Experiment On Retail Payments Systems, Gabriele Camera, Marco Casari, Stefania Bortolotti

ESI Working Papers

We develop a novel theoretical and experimental framework to study adoption and use of cash versus electronic payments in retail transactions. The design allows us to assess the behavioral impact of sellers’ service fees and buyers’ rewards from using electronic payments. In the experiment, buyers and sellers faced a coordination problem, independently choosing a payment method before trading. Sellers readily adopted electronic payments but buyers did not. Eliminating service fees or introducing rewards significantly increased adoption and use of electronic payments. Buyers’ economic incentives played a pivotal role in the diffusion of electronic payments but cannot fully explain their adoption …

Competition Between And Within Universities: Theoretical And Experimental Investigation Of Group Identity And The Desire To Win, Zhuoqiong Charlie Chen, David Ong, Roman M. Sheremeta

ESI Working Papers

We study how salient group identity, created through competition between students from different universities, as well as differences in the value of winning impact competitive behavior. Our experiment employs a simple all-pay auction within and between two university subject pools. We find that when competing against their peers, students within the lower tier university bid more aggressively than students within the top-tier university. Also, students from the lower tier university, in particular women, bid more aggressively when competing against students from the top-tier university. These findings, interpreted through a theoretical model incorporating both group identity and differential value of winning, …

When Income Depends On Performance And Luck: The Effects Of Culture And Information On Giving, Pedro Rey-Biel, Roman M. Sheremeta, Neslihan Uler

ESI Working Papers

We study how giving depends on income and luck, and how culture and information about the determinants of others’ income affect this relationship. Our data come from an experiment conducted in two countries, the US and Spain, which have different beliefs about how income inequality arises. We find no cross-cultural differences in giving when individuals are informed about the determinants of income, but when uninformed, Americans give less than Spanish. Culture and information not only affect individual giving, but also the determinants of giving and the beliefs about how income inequality arises. Beliefs partially moderate cross-cultural differences in giving.

The Gender Difference In The Value Of Winning, Zhuoqiong (Charlie) Chen, David Ong, Roman Sheremeta

ESI Working Papers

We design an all-pay auction experiment in which we reveal the gender of the opponent. Using this design, we find that women bid higher than men, but only when bidding against other women. These findings, interpreted through a theoretical model incorporating differences in risk attitude and the value of winning, suggest that women have a higher value of winning than men.

What Makes A Good Trader? On The Role Of Quant Skills, Behavioral Biases And Intuition On Trader Performance, Brice Corgnet, Mark Desantis, David Porter

ESI Working Papers

We study the determinants of individual trader performance by conducting a comprehensive analysis of a broad range of variables that have been studied separately in different strands of the literature (financial literacy, cognitive skills, behavioral biases and the theory of mind). We utilize an experimental trading environment that allows us to control information flows into the market and measure a large set of individual characteristics. We show that behavioral biases (such as overconfidence and the failure to understand random sampling) significantly explain trader performance whereas standard cognitive and theory of mind skills only have a marginal effect. These results support …

The Effects Of Make And Take Fees In Experimental Markets, Vince Bourke, David Porter

ESI Working Papers

We conduct a series of experiments to examine the effects of the make and take fee structure currently used by equity exchanges in the U.S. We examine the effects of these fees on measures of market quality (allocative efficiency, trading volume, book depth, and the bid-ask spread). With the exception of increased book depth, we document no significant effects of make and take fees relative to a baseline case in which trading fees are assessed on both sides of a transaction.

Behavior In All-Pay Auctions With Ties, Alan Gelder, Dan Kovenock, Roman Sheremeta

ESI Working Papers

Despite the wide occurrence of ties in a variety of contest settings, the strategic interaction that arises when ties are treated as viable outcomes has received little attention. Building on recent theoretical work, we experimentally examine an extension of the canonical two-player all-pay auction in which a tie occurs unless one player’s bid exceeds the other’s by some critical threshold. In the event of a tie, each player receives an identical fraction of the prize. For the case where players receive one-half of the prize when they tie, we find that players’ expenditures are non-monotonic in the threshold required for …

Indirect Reciprocity, Resource Sharing, And Environmental Risk: Evidence From Field Experiments In Siberia, E. Lance Howe, James J. Murphy, Drew Gerkey, Colin Thor West

ESI Working Papers

Integrating information from existing research, qualitative ethnographic interviews, and participant observation, we designed a field experiment that introduces idiosyncratic environmental risk and a voluntary sharing decision into a standard public goods game. Conducted with subsistence resource users in rural villages in remote Kamchatka Russia, we find evidence consistent with a model of indirect reciprocity and local social norms of helping the needy. When experiments allow participants to develop reputations, as is the case in most small‐scale societies, we find that sharing is increasingly directed toward individuals experiencing hardship, good reputations increase aid, and risk‐pooling becomes more effective. Our results highlight …

Asymmetric And Endogenous Within-Group Communication In Competitive Coordination Games, Timothy N. Cason, Roman Sheremeta, Jingjing Zhang

ESI Working Papers

Within-group communication in competitive coordination games has been shown to increase competition between groups and lower efficiency. This study further explores potentially harmful effects of communication, by addressing the questions of (i) asymmetric communication and (ii) the endogenous emergence of communication. Our theoretical analysis provides testable hypotheses regarding the effect of communication on competitive behavior and efficiency. We test these predictions using a laboratory experiment. The experiment shows that although asymmetric communication is not as harmful as symmetric communication, it leads to more aggressive competition and lower efficiency relative to the case when neither group can communicate. Moreover, groups vote …

Status And The Demand For Visible Goods: Experimental Evidence On Conspicuous Consumption, David Clingingsmith, Roman M. Sheremeta

ESI Working Papers

Some economists argue that consumption of publicly visible goods is driven by social status. Making a causal inference about this claim is difficult with observational data. We conduct an experiment in which we vary both whether a purchase of a physical product is publicly visible or kept private and whether the income used for purchase is linked to social status or randomly assigned. Making consumption choices visible leads to a large increase in demand when income is linked to status, but not otherwise. We investigate the characteristics that mediate this effect and estimate its impact on welfare.

Selective Recognition: How To Recognize Donors To Increase Charitable Giving, Anya Samek, Roman Sheremeta

ESI Working Papers

Recognizing donors by revealing their identities is important for increasing charitable giving. We conducted a field experiment to examine how different recognition methods impact giving, and found that all forms of recognition that we examined had a positive impact on increasing donations, whereby recognizing only highest donors (positive recognition) and recognizing only lowest donors (negative recognition) had the most pronounced effect. We argue that selective recognition (both positive and negative) creates tournament-like incentives. Recognizing the highest donors activates the desire to seek a positive prize of prestige, thus increasing the proportion of donors who contribute large amounts. Recognizing the lowest …

Language And Cooperation In Hominin Scavenging, Bart J. Wilson, Samuel R. Harris

ESI Working Papers

Bickerton (2009, 2014) hypothesizes that language emerged as the solution to a scavenging problem faced by proto‐humans. We design a virtual world to explore how people use words to persuade others to work together for a common end. By gradually reducing the vocabularies that the participants can use, we trace the process of solving the hominin scavenging problem. Our experiment changes the way we think about social dilemmas. Instead of asking how does a group overcome the selfinterest of its constituents, the question becomes, how do constituents persuade one another to work together for a common end that yields a …