Learning Why More Learning Takes Place in Some Classrooms Than Others

Abstract. The relatively poor average performance of German students on the recent PISA international evaluations of 15- and 16-year-olds' literary skills (2000) and mathematical skills (2003) and the wide variation in performance, with low-income students scoring particularly poorly, have led to calls for reforms of the German educational system. Understanding why students in some classrooms learn more than do those in other classrooms is an important first step in considering alternative reform strategies. Possible explanations include differences in teacher quality, class sizes and peer groups, and also differences among the types of secondary schools that parents select for their children. This paper illustrates a set of techniques that are useful in examining the roles these factors play in predicting why, net of family background and prior achievement, the average achievement of children in some classrooms is much higher than that of children in other classrooms. We illustrate the use of these techniques with a dataset from Bogotá, Colombia, that has two attractive properties. First, some teachers teach multiple classes of students. Second, students are enrolled in schools in two sectors (public and private). Application of the techniques described in this paper could shed light on the reasons why the average academic achievement of German students attending some schools is much higher than that of German students attending other schools.     

Taxes and capital structure: evidence from firms' response to the Tax Reform Act of 1986

While the theoretical relation between taxes and capital structurehas been extensively analyzed, the empirical evidence on thisissue has thus far been inconclusive. One of the main difficultiesconfronting previous empirical studies of the cross-sectionalrelationship between taxes and leverage was the control of interveningvariables. The Tax Reform Act of 1986 (TRA), which drasticallychanged the tax regime, provides a unique opportunity to assessthe interaction between taxes and leverage decisions in a controlledenvironment. We test the relationship between leverage and certaintax-related variables for a large sample of companies in theyears surrounding the enactment of the TRA. The results supportthe tax-based theories of capital structure. The findings indicatethat there exists a substitution effect between debt and nondebttax shields, and that both corporate and personal tax ratesaffect leverage decisions.     

Ethical Codes of Conduct and Organizational Context: A Study of the Relationship Between Codes of Conduct, Employee Behavior and Organizational Values

Codes of ethics are being increasingly adopted in organizations worldwide, yet their effects on employee perceptions and behavior have not been thoroughly addressed. This study used a sample of 613 management accountants drawn from the United States to study the relationship between corporate and professional codes of ethics and employee attitudes and behaviors. The presence of corporate codes of ethics was associated with less perceived wrongdoing in organizations, but not with an increased propensity to report observed unethical behavior. Further, organizations that adopted formal codes of ethics exhibited value orientations that went beyond financial performance to include responsibility to the commonweal. In contrast to corporate codes of ethics, professional codes of ethical conduct had no influence on perceived wrongdoing in organization nor these codes affect the propensity to report observed unethical activities.     

HORIZONTAL MISMATCH BETWEEN EMPLOYMENT AND FIELD OF EDUCATION: EVIDENCE FROM A SYSTEMATIC LITERATURE REVIEW

This paper provides a systematic review of the growing literature on the poor match between employees’ field degree and the job requirements, also referred to as horizontal mismatch. We identify the different definitions used in the literature and find that each measure of horizontal mismatch yields substantially different incidence rates. We discuss the validity of the different measures and conclude that a more uniform definition of horizontal mismatch is needed. The likelihood of horizontal mismatch is among other things determined by the extent to which employees possess general skills as opposed to occupation‐specific skills, and, it appears to be more frequently present among older workers. Compared to well‐matched employees, horizontally mismatched workers generally incur a wage penalty, are less satisfied with their jobs, and are more likely to regret their study programme. The ensuing findings offer guidance to prevent horizontal mismatch as well as a roadmap for future research.     

Forcing firms to talk: financial disclosure regulation and externalities

We analyze a model of voluntary disclosure by firms and thedesirability of disclosure regulation. In our model disclosureis costly, it has private and social value, and its precisionis endogenous. We show that (i) a convexity in the value ofdisclosure can lead to a discontinuity in the disclosure policy;(ii) the Nash equilibrium of a voluntary disclosure game isoften socially inefficient; (iii) regulation that requires aminimal precision level sometimes but not always improves welfare;(iii) the same is true for subsidies that change the perceivedcost of disclosures; and (iv) neither regulation method dominatesthe other.     

THE EFFECTS OF GOAL EMPHASIS ON PERFORMANCE ON A COMPLEX TASK[1]

The article reports the results of a naturally occurring field experiment which took place in the Judge Advocate function of the Tactical Air Command (TAC), a major command within the US Air Force. Official Air Force goals for courts-martial processing time had existed for years but generally were ignored because they were considered unrealistic and unimportant. A new TAC staff advocate decided that processing time should be improved and took steps to emphasize goal attainment through various procedures. The result was a significant improvement in courts-martial processing time as compared to the rest of the Air Force where no such emphasis occurred. The implications of the results for goal setting theory and leadership are discussed.     

Sunshine trading and financial market equilibrium

In this article, we consider the possibility that some liquiditytraders preannounce the size of their orders, a practice thathas come to be known as 'sunshine trading'. Two possible effectspreannouncement might have on the equilibrium are examined.First, since it identifies certain trades as informationless,preannouncement changes the nature of any informational asymmetriesin the market. Second, preannouncement can coordinate the supplyand demand of liquidity in the market. We show that preannouncementtypically reduces the trading costs of those who preannounce,but its effects on the trading costs and welfare of other tradersare ambiguous. We also examine the implications of preannouncementfor the distributions of prices and the amount of informationthat prices reveal.     

A theory of intraday patterns: volume and price variability

This article develops a theory in which concentrated-tradingpatterns arise endogenously as a results of the strategic behaviorof liquidity traders and informed traders. Our results providea partial explanation for some of the recent empirical findingsconcerning the patterns of volume and price variability in intradaytransaction data.