Optimality of the Friedman Rule in Overlapping Generations Model with Spatial Separation

Recent papers suggest that when intermediation is analyzed seriously, the Friedman rule does not maximize social welfare in overlapping generations model in which money is valued because of spatial separation and limited communication. These papers emphasize a trade-off between productive efficiency and risk sharing. We show financial intermediation or a trade-off between productive efficiency and risk sharing are neither necessary nor sufficient for that result. We give conditions under which the Friedman rule maximizes social welfare and show any feasible allocation such that money grows faster than the Friedman rule is Pareto dominated by a feasible allocation with the Friedman rule. The key to the results is the ability to make intergenerational transfers.monetary policy, Friedman rule, fiat money

Topology and Dark Energy: Testing Gravity in Voids

Modified gravity has garnered interest as a backstop against dark matter and dark energy (DE). As one possible modification, the graviton can become massive, which introduces a new scalar field - here with a Galileon-type symmetry. The field can lead to a nontrivial equation of state (EOS) of DE which is density-and-scale-dependent. Tension between Type Ia supernovae and Planck could be reduced. In voids the scalar field dramatically alters the EOS of DE, induces a soon-observable gravitational slip between the two metric potentials, and develops a topological defect (domain wall) due to a nontrivial vacuum structure for the field.Comment: Revised version, added detail, conclusions unchanged, matches PRL published version in content. 4 pages, 2 figure

Perceived Ice Quality in NHL Arenas and the Effect on Player Offensive Performance

The playing surface in hockey is unlike any other in sports and because it is so integral to the game, players and coaches believe that ice quality can impact their offensive performance. The purpose of this study was to investigate the effect of ice quality of NHL arenas on player performance by comparing statistics from games played at the best and worst rated arenas and to their season average. One forward and one defenseman from each of the twenty-one teams who do not play their home games in either the top five or bottom five ranked arenas were selected for this study. These players were among the highest scoring players on their teams and played multiple games at the arenas being studied. Each player’s average total points per game as well as Corsi for percentage per game were calculated for the season as well as at the top and bottom arenas. Those means were compared in paired-samples t-tests. There was no significant difference in points per game at the top (µ = .7069) and bottom (µ = .6759) rated rinks (n = 42, p = .771). Both means were lower than the entire season average (µ = .8183) for all forty-two players studied and the average at the bottom five rated rinks was significantly lower than the season average (n = 42, p = .007). Results showed that there was no significant difference in Corsi for per game at the top (µ = 54.0048) and bottom (µ = 54.3579) rated rinks (n = 42, p = .713). Furthermore, Corsi was significantly higher than the entire season average (52.1893) at both the bottom-rated arenas (n = 42, p = .005) and the top-rated arenas (n = 42, p = .016). These results do not support the perception that ice quality significantly affects player performance. Some possible explanations include points per game and Corsi not accurately measuring offensive performance, the overall talent of the home teams in those arenas, and the psychological effect perception can have on performance

An Analysis of the Questions on University Teaching Surveys and the Universities that Use Them: The Australian Experience

This paper is the first attempt to perform an analysis of the internal Quality of Teaching Surveys (QTS) used in all Australian Universities by investigating how they compare across Universities. We categorize the questions on each university’s QTS into one of 18 types and then define a proximity measure between the surveys. We then use an agglomerative cluster analysis to establish groupings of these institutions on the basis of the similarity of their QTSs as well as groupings of question types by their frequency of use. In addition, we also determine if the form of the survey is related to the responses recorded by the Course Evaluation Questionnaire (CEQ) that is administered to all graduates of Australian Universities. This was done by the use of regression analysis to establish if the form of the questionnaire is related to the overall good teaching scores earned by the universities from the CEQ.Tertiary Education; University Rankings; CEQ

A Systematic Analysis of Quality of Teaching Surveys

All tertiary institutions in Australia use the same Course Evaluation Questionnaire (CEQ) however for the internal evaluation of teaching they use their own surveys. This paper performs an analysis of the internal Quality of Teaching Surveys (QTS) used in Australian Universities. We classify the questions within the QTS surveys. This classification is used to explore how different universities’ surveys are similar to each other. We find that some universities use a QTS that is quite distinct from other universities. We also investigate whether there is a particular pattern to the types of questions used in the surveys. We find that there are some question types that are employed widely in a typical survey and others that are All tertiary institutions in Australia use the same Course Evaluation Questionnaire (CEQ) however for the internal evaluation of teaching they use their own surveys. This paper performs an analysis of the internal Quality of Teaching Surveys (QTS) used in Australian Universities. We classify the questions within the QTS surveys. This classification is used to explore how different universities’ surveys are similar to each other. We find that some universities use a QTS that is quite distinct from other universities. We also investigate whether there is a particular pattern to the types of questions used in the surveys. We find that there are some question types that are employed widely in a typical survey and others that are All tertiary institutions in Australia use the same Course Evaluation Questionnaire (CEQ) however for the internal evaluation of teaching they use their own surveys. This paper performs an analysis of the internal Quality of Teaching Surveys (QTS) used in Australian Universities. We classify the questions within the QTS surveys. This classification is used to explore how different universities’ surveys are similar to each other. We find that some universities use a QTS that is quite distinct from other universities. We also investigate whether there is a particular pattern to the types of questions used in the surveys. We find that there are some question types that are employed widely in a typical survey and others that are not. This analysis can be used by universities to determine how their surveys compare to their peer institutions and other institutions across Australia.

Sueños verídicos de Ahmet Hilmi

Abstract not availabl