System alignment supports cross-domain learning and zero-shot generalisation

Recent findings suggest conceptual relationships hold across modalities. For instance, if two concepts occur in similar linguistic contexts, they also likely occur in similar visual contexts. These similarity structures may provide a valuable signal for system alignment when learning to map between domains, such as when learning the names of objects. To assess this possibility, we conducted a paired-associate learning experiment in which participants mapped objects that varied on two visual features to locations that varied along two spatial dimensions. We manipulated whether the featural and spatial systems were \textit{aligned} or \textit{misaligned}. Although system alignment was not required to complete this supervised learning task, we found that participants learned more efficiently when systems aligned and that aligned systems facilitated zero-shot generalisation. We fit a variety of models to individuals' responses and found that models which included an offline unsupervised alignment mechanism best accounted for human performance. Our results provide empirical evidence that people align entire representation systems to accelerate learning, even when learning seemingly arbitrary associations between two domains.

Party-related primacy effects in proportional representation systems: evidence from a natural experiment in Polish local elections

We study the primacy effects that occur when voters cast their votes because a candidate or party is listed first on a ballot. In the elections that we analyzed, there are three potential types of such effects that might occur when voters vote for (1) the first candidate listed on the ballot in single-member district (SMD) elections (candidate primacy); (2) the first party listed on the ballot in open-list proportional representation (OLPR) elections (party primacy); or (3) the first candidate on a party list in OLPR elections (list primacy). We estimated the party primacy effect (2) and established that there was no interaction between (2) and (3). A party primacy effect is especially difficult to estimate because parties’ positions on ballots are typically fixed in all multi-member districts (MMDs) and it is impossible to separate the first-position “bonus” from a party’s normal electoral performance. A rare natural experiment allowed us to estimate the primacy party bonus between 6.02 and 8.52% of all votes cast for the 2014 Polish local elections. We attribute the large size of such bonus to the great complexity of voting in the OLPR elections, especially the much longer ballots, voting in many simultaneous elections, and ballot design as a booklet rather than a sheet.

An Analysis of World Protests 2006–2020

This section of the book “World Protests: A Study of Key Protest Issues in the 21st Century” analyzes in-depth 2809 protests that occurred between 2006 and 2020 in 101 countries covering over 93% of the world population. This section focuses on: (i) major grievances and demands driving world protests, such as the failure of political representation/systems, anti-austerity, and for civil rights and global justice; (ii) who was demonstrating; (iii) what protest methods they used; (iv) who the protestors opposed; (v) what was achieved; and (vi) violence and repression in terms of arrests, injuries, and deaths.

Undergraduate Students’ Combinatorial Proof of Binomial Identities

Combinatorial proof serves both as an important topic in combinatorics and as a type of proof with certain properties and constraints. We report on a teaching experiment in which undergraduate students (who were novice provers) engaged in combinatorial reasoning as they proved binomial identities. We highlight ways of understanding that were important for their success with establishing combinatorial arguments; in particular, the students demonstrated referential symbolic reasoning within an enumerative representation system, and as the students engaged in successful combinatorial proof, they had to coordinate reasoning within algebraic and enumerative representation systems. We illuminate features of the students’ work that potentially contributed to their successes and highlight potential issues that students may face when working with binomial identities.

Electoral systems and income inequality: a tale of political equality

The link between democracy and within-country income inequality remains an unresolved quest in the literature of political economy. To look into this debate, I propose exploring the implications of electoral systems, rather than political regimes, on income inequality. I surmise that proportional representation systems should be associated with lower income inequality than majoritarian or mixed systems. Further, I conjecture that the relationship between electoral systems and income inequality hinges on the de facto distribution of real political power, namely political equality. I use data on 85 countries covering the period 1960–2016 and specify models able to capture the persistence and mean reversion of income inequality. The estimates fail to significantly associate democracy with income inequality, and find other political institutions to significantly shape income inequality. The paper finds a robust association between more proportional systems and lower income inequality. However, this association depends on political equality. Changes towards proportional representation systems seem to lower income inequality at low and medium levels of political equality. Strikingly, instrumental variable estimates show that changes in electoral systems in political equal societies increases income inequality.

Electoral Systems and the Substantive Representation of Marginalized Groups: Evidence from Women’s Issue Bills in South Korea

How do electoral rules shape the substantive representation of traditionally underrepresented groups? Using an original dataset of introduced and passed bills in the Korean National Assembly, which has both single-member districts and proportional representation, we examine the extent to which institutions condition the relationship between lawmaker gender and the substantive representation of women. While women lawmakers engage in higher levels of substantive representation of women, proportional representation allows both women and men to introduce more women’s issue bills than their counterparts elected through single-member districts. Furthermore, legislators elected through proportional representation are more effective at achieving passage of women’s issue legislation when compared with those elected in single-member districts, and this effect is especially pronounced for men. Our findings show that electoral systems matter for the representation of marginalized groups and that proportional representation systems allow both female and male politicians to increase their substantive representation of women.

Training of pedagogical staff for conducting activities in the conditions of inclusive education

The evidence from practice shows that currently teachers are not competent enough in the field of inclusive education. Consequently, in the context of inclusive education, there is a growing need to train teachers who will teach students with disabilities. The purpose of the academic paper is to study the features of teachers’ training for conducting activities in the conditions of inclusive education on the example of the experience of the European Union’s member states. Methods: theoretical analysis, abstraction, description, observation, graphical representation, systems analysis, comparison, experiment, measurement, modeling and generalization. It has been determined that Luxembourg, Denmark, Sweden, the Netherlands and Austria have occupied leading positions in the Inclusive Development Index in 2018, according to which the level of inclusive development of these countries is very high. It is proposed to conduct a study of the features of teachers’ training for conducting activities in the conditions of inclusive education, based on the experience of Luxembourg, Denmark, Sweden, the Netherlands and Austria.