This paper models transaction costs as the rents that a monopolistic market maker extracts from impatient investors who trade via limit orders. We show that limit orders are American options. The limit prices inducing immediate execution of the order are functionally equivalent to bid and ask prices and can be solved for various transaction sizes to characterize the market maker’s entire supply...

The integration of a Learning Management System (LMS) in K-12 opens new possibilities for online interaction among teachers, students, and parents. This paper examines the implementation of an LMS called Mashov (meaning "feedback" in Hebrew, as well as the acronym of "Immediacy, Transparency, and Supervision") in ten Israeli secondary schools during the years 20072009. Consistent with the Diffu...

(A case study discussion on the role of localized nature of a mobile gaming and new haptic vocabularies).

The enhancement of collective learning for teachers and students through mobile devices is the building block of this ‘idea’ paper. We address the connection between mobile enhanced collective learning and Open Educational Practice (OEP), as teaching and learning practice with Open Educational Resources. The aims are to develop an understanding of the connections between mobile enhanced group l...

Eight pigeons responded in a three-component concurrent-chains procedure, with either independent or dependent initial links. Relative probability and immediacy of reinforcement in the terminal links were both varied, and outcomes on individual trials (reinforcement or nonreinforcement) were either signaled or unsignaled. Terminal-link fixed-time schedules were varied across components within c...

Purpose This study aims to propose and test a model that examines the potential connections between two teacher situational variables (teacher immediacy credibility) three learner affective factors (motivation, attitudes communication confidence) examine how such associations predict learners’ L2WTC (Foreign/second language willingness communicate) in class via comprehensive structurally verify...