New insights into an old problem – enhancing student learning outcomes in an introductory statistics course

Many students enrolled in first year introductory statistics courses believe learning statistics is a waste of time and fear they will fail. In this study, we explored the impacts on learning outcomes for students in an introductory statistics course by allowing students to arbitrarily choose their own sequence of learning from three key learning activities, namely tutorials, Peer-Assisted Study Sessions and Computer-Managed Learning quizzes. Unlike the old regime where the learning activities followed a strict, rigid sequence, a new regime allowed students to freely choose when, where and how they engaged with the course learning activities. This allowed increased opportunities for students to receive relevant and timely feedback. Using a total of 1187 students enrolled in semester 2 of 2011, 2012 and 2013, data were collected on students’ scores from 7 assessment tasks. Our experimental design ensured as many course features as possible remained constant between the control cohorts (of 2011 and 2012) and the experimental cohort (2013), thereby avoiding potential sample selection problems. The findings showed student learning outcomes in the new regime improved significantly. Interestingly, the effects were found to be greatest in the lower percentile of the score distribution.     

Bayesian forecasting of electoral outcomes with new parties’ competition

We propose a new methodology for predicting electoral results that combines a fundamental model and national polls within an evidence synthesis framework. Although novel, the methodology builds upon basic statistical structures, largely modern analysis of variance type models, and it is carried out in open-source software. The methodology is motivated by the specific challenges of forecasting elections with the participation of new political parties, which is becoming increasingly common in the post-2008 European panorama. Our methodology is also particularly useful for the allocation of parliamentary seats, since the vast majority of available opinion polls predict at national level whereas seats are allocated at local level. We illustrate the advantages of our approach relative to recent competing approaches using the 2015 Spanish Congressional Election. In general, the predictions of our model outperform the alternative specifications, including hybrid models that combine fundamental and polls models. Our forecasts are, in relative terms, particularly accurate in predicting the seats obtained by each political party.     

Krishna Bharadwaj's “Return to Classical Theory”: an attempt towards an archaeological reconstruction

Abstract

In the wake of Sraffa's ‘return to classical theory’, Krishna Bharadwaj undertook a critical reassessment of Marshall's claim to continuity with classical theory in general and Ricardo's ‘intensive margin’ in particular. Her analysis is based on an analytical separation between two distinct ways of economic reasoning: the ‘surplus based’ and the ‘demand and supply based’ theories. Calling it an ‘archaeological reconstruction’ of the history of economic theories, I will examine how such an interpretation of theoretical shifts clarifies both the presuppositions behind analysing at the ‘margin’, and hence its radical departure from the conceptual content of the classical theory.     

The Emptiness of Peasant “Rationality”: “Demirationality” as an Alternative

This article discusses consumption as a social process that is part of social provisioning and is in an evolutionary interplay with other social processes. The analysis provides grounds for a context-specific research that explores consumption in the context of a culture-nature life process, and draws on material from various disciplines. The article seeks to contribute to the literature on social provisioning as an organizing concept in heterodox economics. The first section explains what is meant by social process and delineates its elements. The second section formulates a categorization of social processes, and locates a consumption process within a system of culture-nature life processes. The rest of the article delineates the elements of the consumption process, providing illustrations based on literature from various disciplines. Specifically, the third section discusses consumption activities. The fourth section discusses institutions and systems of provision of goods and services. The fifth section applies the concept of habits of life and thought to the consumption process. Finally, the article concludes that the formulated analysis transcends dualisms such as social-economic, cultural-material, society-nature, and micro-macro, and draws implications for heterodox economics.     

The scientific openness decision model: “Gaming” the technological and scientific outcomes

Open innovation has been examined a great deal in the last few years in the technology management and innovation literature, but its critical aspect – scientific openness – has been debated for centuries. The purpose of this paper is to elucidate the arguments for and against scientific openness. Using concepts from game theory, we develop the Scientific Openness Decision Model linking the strategic decision for openness/secrecy and the resultant business environment. We then empirically test that model using data from 118 companies across 54 industries. Openness, measured by scientific publications, is found to be a strong predictor of both positive technological and scientific outcomes for firms. These findings are examined to determine the relative merits of a strategy of scientific openness versus secrecy, and future research possibilities are discussed.     

The “Boston” school-choice mechanism: an axiomatic approach

The Boston mechanism is a popular student-placement mechanism in school-choice programs around the world. We provide two characterizations of the Boston mechanism. We introduce two new axioms; favoring higher ranks and rank-respecting invariance. A mechanism is the Boston mechanism for some priority if and only if it favors higher ranks and satisfies consistency, resource monotonicity, and rank-respecting invariance. In environments where each type of object has exactly one unit, as in house allocation, a characterization is given by favoring higher ranks, individual rationality, population monotonicity, and rank-respecting invariance.     

Can an overconfident insider coexist with a representativeness heuristic insider?

This paper develops an insider trading model that incorporates the presence of rational, overconfident, and representativeness heuristic insiders. We find that the heuristic insider and overconfident insider trade more aggressively on their information than the rational insider, and that therefore, a higher probability exists for them to earn more profits. Furthermore, both higher heuristic bias of the heuristic insider and greater overconfidence of the overconfident insider lead to less expected profit for the rational insider and less expected loss for the noise trader. Moreover, in an equilibrium, both higher heuristic bias and greater overconfidence of an insider lead to a more efficient and stable market.     

Self-managed market socialism with “free mobility of labor”

In 1934 Breit and Lange presented a model of a socialist market economy in which workers had a right to be employed by self-managed firms. The interest of this model lies in particular in the fact that it eliminates two possible flaws of Myrian-type socialism: differentiation in per capita earnings across self-managed firms and involuntary unemployment. Analogous features can be found in Herztka's 19th-century model of market socialism. The purpose of the paper is to analyze an economy with free mobility of labor (Herztka's expression for the right of workers to employment) both from the point of view of X- as well as of allocative efficiency. Finally the possibility of a partial application of the right to employment principle in a capitalist economy is considered.     

Syllabus and economics: Reasoning with Generation “Why”

In this article, the authors propose to enhance the syllabus for economic courses with economic explanations. They argue that providing economic rationale for course policies can increase student interest in the course and at the same time positively affect student attitude toward course policies. The authors describe practical strategies for incorporating economic explanations into the syllabus and present insights from piloting the technique.     

Improved output gaps with financial cycle information? An application to G7 countries’ new Keynesian Phillips curves

In search for more robust cyclical imbalance indicators, recent research has highlighted the interactions between business and financial cycles. Output gap formulations increasingly take imbalances of the financial cycle into account, postulating finance-neutral output gaps (FNGAPs). To test their increased explanatory power in econometric models, we compare FNGAPs to univariate output gaps in their ability to explain inflation dynamics in hybrid new Keynesian Phillips curves. Results indicate FNGAPs to exercise (dis)inflationary pressure, but not to outperform traditional output gaps. Nonetheless, they have become increasingly significant in the course of the 2007/08 Global Financial Crisis.     

If you could read my mind–an experimental beauty-contest game with children

Experimental Economics - We develop a new design for the experimental beauty-contest game (BCG) that is suitable for children in school age and test it with 114 schoolchildren aged 9–11 years...     

Dominance testing for ‘pro-poor’ growth with an application to European growth

This article introduces statistical testing procedures to evaluate ??pro-poor?? growth. Our measure of ??pro-poorness?? follows Kakwani (J Quant Econ 16(1):67?C80, 2000), Kakwani and Pernia (Asian Dev Rev 18(1):1?C16, 2000), and Son (Econ Lett 82:307?C314, 2004), who decompose the generalized Lorenz ordinates into a growth effect and an inequality effect. We derive an asymptotic distribution-free covariance matrix for the decomposed generalized Lorenz curves. Using this decomposition (and our standard errors), we test for pro-poor dominance in the growth process. We illustrate our test for the pro-poor dominance by evaluating the degree of pro-poor growth in five European countries.     

“Generalized Darwinism” and the quest for an evolutionary theory of policy-making

According to the “Generalized Darwinism” movement (GD), the three principles of variation, selection and retention/replication (labeled “Darwinian” in some variants of GD) can and should be used as a meta-theoretical framework for the explanation of evolutionary processes in the sociocultural domain. Despite their biological origins, the various variants of GD aim at redefining these principles in a way that is supposed to abstract from any domain-specific particulars. We argue that in order to qualify as an adequate meta-theoretical framework for evolutionary economics, GD should not only inspire and guide positive theory development in evolutionary economics, but also be able to support viable practical policy implications. Examining its potential to do so, however, leads us to the conclusion that in its specific deductive variant proposed by Hodgson & Knudsen (HKGD), it risks systematically misguiding evolutionary policy advice. Competing variants, such as the one proposed by Pelikan, fare better in this regard.     

Liberalization,bankers’ motivation and productivity: A simple model with an application

Proponents of financial liberalization argue that deregulation motivates bankers to increase their effort and operate at a higher level of efficiency and productivity. Sceptics, however, see that liberalization engenders economic instability and banking crises, and impedes growth. Bank efficiency and productivity, following liberalization, is extensively examined. Nonetheless, the core issue of bankers’ self-motivation remains implicitly assumed and unaddressed. Does liberalization self-motivate bankers and increase their efforts and productivity? This paper models bank productivity from this perspective and evaluates what proportion of banks’ total factor productivity is accounted for by the self-motivated productivity of bankers. We provide a micro-founded framework for the analyses of bankers’ optimal level of effort and effort-driven productivity. Our model also captures banks’ unit input-output prices, optimal wages, bank spread and the overall cost of bank services – measures that are important in evaluating reform policies. We assess the financial liberalization of Nepal as a test case and find that (i) bankers’ efforts and productivity have notably improved in Nepal, although banking services have become costly, and (ii) bank spread has moderately declined in recent years. Our approach is parametric which differs from DEA, hence complements the literature. We hope this analytical framework will be useful to evaluate reform episodes elsewhere.