Saying versus doing: a new donation method for measuring ideal points

Scaling methods pioneered by Poole and Rosenthal (Am J Polit Sci 29(2):357–384, 1985) redefined how scholars think about and estimate the ideologies of representatives seated in the US Congress. Those methods also have been used to estimate citizens’ ideologies. Whereas studies evaluating Congress typically use a behavioral measure, roll call votes, to estimate where representatives stand on the left-right ideological spectrum, those of the public most often have relied on survey data of stated, rather than revealed, preferences. However, measures of individuals’ preferences and, accordingly, estimates of their ideal points, may differ in important ways based on how preferences are elicited. In this paper, we elicit the same individuals’ preferences on the same 10 issues using two different methods: standard survey responses measured on a Likert scale and a donation exercise wherein individuals are forced to divide $1.50 between interest groups with diametrically opposed policy preferences. Importantly, expressing extreme views is costless under the former, but not the latter, method. We find that the type of elicitation method used is a significant predictor of individuals’ ideal points, and that the elicitation effect is driven primarily by Democratic respondents. Under the donation method, the ideal points of Democrats in the aggregate shift left, particularly for those Democrats who are politically engaged. In contrast, wealthy Democrats’ ideal points shift to the right. We also document effects for Republicans and Independents and find that overall polarization is similar under both elicitation methods. We conclude with a discussion of our results, and the consequences and tradeoffs of each elicitation method.     

An analysis of legislative inefficiency and ideological behavior

This paper explores the theory of legislative inefficiency and the role of ideological preferences of legislators. It is shown that inefficiency can be caused by many factors other than legislative ideological behavior. Three major sources are emphasized: cost of voting and policy position information asymmetries across groups of voters and barriers to entry in political competition. Ideological preferences of legislators is not a cause of inefficiency independently. Legislators who care about both policy and winning will give inefficient representation to their constituents only when groups of voters are prevented from participating equally in the legislative process.     

Social Psychology's Contributions to the Study of Conflict Resolution

This essay presents an indication of the major research questions addressed in the literature of social psychology related to conflict resolution, as well as a historical perspective to see what progress has been made in this area. Highlighted at the conclusion of a section on contemporary themes in conflict studies is the author's consideration of what we know (and need to know) about conflict resolution and overcoming oppression. The author also offers an assessment of the progress thus far in the methodological, conceptual, empirical, and technological domains in the social psychological study of conflict.     

Awakening the sense of injustice

This paper is concerned with the sense of injustice of the victim and the victimizer. In it we consider the reasons for the differential sensitivity to injustice of the victim and the victimizer and the conditions necessary for awakening the sense of injustice in these different participants in an unjust relationship.This paper is a modified version of a paper originally published in Lerner and Ross (1974) and then published in revised form in Deutsch (1985).     

Taphonomy of child-sized remains: a study of scattering and scavenging in Virginia, USA

Child-sized pig carcasses (Sus scrofa) were placed in surface deposit and buried scenarios in a wooded area of Virginia from May 1998 through December 2000, to examine the taphonomic effects of decompositional changes, predator scavenging, and the extent of remains scattering. Changes were observed through on-site examination, charting of remains, and recorded video imaging. Analysis of data revealed that utilization of corpses as food sources by vertebrates was dependent upon invertebrate colonization. Vertebrates avoided feeding on the corpses while invertebrate colonization was active, and would feed before invertebrates successfully colonized a corpse, or would wait until the invertebrate populations migrated away from the corpse. Among vertebrates, there was no apparent succession order for the animals utilizing the remains as a food source. Different vertebrates would feed at different times based upon diurnal or nocturnal predilection. Analysis noted an accidental cooperative relationship between the invertebrates and vertebrates scavenging on the corpses. Certain vertebrates gained access to the internal tissues by utilizing openings in the corpses caused by invertebrate and other vertebrate scavenging. Alternately, carrion-frequenting insects were afforded access to previously inaccessible colonization sites as a result of scavenging vertebrate activities.