Competition for the International Pool of Talent: Education Policy and Student Mobility

This paper presents a model of two countries competing for a pool of students from the rest of the world (ROW). In equilibrium, one country offers high educational quality for high tuition fees, while the other country provides a low quality and charges low fees. The quality in the high quality country, the tuition fees, and the quality and tuition fee differential between the countries increase with the income prospects in ROW and the number of international students. Higher stay rates of foreign students lead to more ambiguous results. In particular, an increase in educational quality can be accompanied by a decline in tuition fees. Furthermore, international competition for students can give rise to a brain gain in ROW.Higher education; student mobility; vertical quality dierentiation; return migration; brain gain

Competition for the International Pool of Talents : Education Policy with Student Mobility

The paper presents a model of two countries competing for the international pool of talented students from the rest of the world. To relax tuition-fee competition, countries differentiate their education systems in equilibrium. While one country offers high education quality at high charges for students - the most talented ones study in this country - the other one provides lower quality and charges lower tuition fees. The regional quality-differentiation increases with the size of the international pool of talents, with the stay rate of foreign students in the host countries upon graduation and with the degree of development of the sending countries of foreign students. Compared to the welfare-maximizing education-policy, the decentralized solution is likely to imply an inefficient allocation of foreign students to the two host countries, as well as an inefficient quality differentiation.higher education, student mobility, vertical quality differentiation, return migration

A Note on Brain Gain and Brain Drain: Permanent Migration and Education Policy

In this note, we present a novel channel for a brain gain. Students from a developing country study in a developed host country. A higher permanent migration probability of these students appears to be a brain drain for the developing country in the first place. However, it induces the host country to improve its education quality, as a larger share of the generated benefits accrue in this host country. A higher education quality raises in turn the human capital of the returning students. As long as the permanent migration probability is not too large, this positive effect causes both aggregate and per-capita human capital to increase in the developing country. Thus, a brain gain occurs.brain gain, education policy, human capital, return migration

Pensions, Education and Life Expectancy

In a two-period model with agent heterogeneity we analyze a pension reform toward a stronger link between contributions and benefits (as recently observed in several countries) in a pension system with a Bismarckian and a Beveridgian component. We show that such a policy change reduces the educational level in an economy. The life expectancy differential between skilled and unskilled individuals drives this result. Furthermore, we investigate the consequences on the intragenerational redistribution characteristics of the pension system – in the sense of the number of net-recipients relative to net-payers – as well as welfare effects.social security, education, life expectancy, pension reform, redistribution

Assessing Emission Allocation in Europe: An Interactive Simulation Approach

Implementation of an EU-wide emissions trading system by means of National Allocation Plans is at the core of European environmental policy agenda. Member States are faced with the problem of allocating their national emission budgets under the EU Burden Sharing Agreement between energy-intensive sectors that are eligible for international emissions trading and the remaining segments of their economies that will be subject to complementary domestic emission regulation. The country-specific segmentation of national emission budgets between trading sectors and non-trading sectors will determine the cost efficiency of the EU emissions trading system and the gains for each Member State vis-?-vis domestic abatement policies. We present an interactive simulation model where users can specify the design of National Allocation Plans for each EU Member State and then evaluate the induced economic effects. Our numerical framework is based on marginal abatement cost curves for (emissions) trading and non-trading sectors of the EU-15 economies. Illustrative simulations highlight the importance of a coordinated design of National Allocation Plans in order to avoid substantial excess costs of regulation and drastic burden shifting between nontrading and trading sectors. --emissions trading,allowance allocation,National Allocation Plans

A Longitudinal Study on Boosting Students’ Performance with a Learning Companion

This study examines the impact of a coded virtual learning companion (LC) that interacts with students of an introductory information systems class throughout the semester. The LC is designed to motivate, advise on time management strategies, and study collaboratively. We conducted a between-subject longitudinal field experiment to investigate the LC’s impact on student motivation, time management, and learning outcomes. Statistical analysis, including a PLS-SEM model, shows that the LC significantly (p \u3c 0.05) improves extrinsic motivation, challenge, short-term planning, and time attitudes. A multiple mediator analysis confirms the role of motivation and time management as mediators between LC use and learning outcomes (subjective knowledge and exam scores). In addition, we conducted a qualitative workshop with the target group to identify barriers to LC adoption and derive mitigation strategies. Overall, our study reveals great potential to facilitate learning with LCs in higher education

Implementation and Evaluation of a Static Backwards Data Flow Analysis in FlowDroid

In the last decade, many static taint analysis tools based on IFDS have been proposed. Nearly all of them only have a single analysis direction, with most opting for a forward-directed analysis and some for a backward-directed analysis. In this thesis, we investigate the effect of the analysis direction on the runtime and memory consumption. We extended FlowDroid to feature a backward-directed analysis, which is equally precise as FlowDroid's forward analysis. We evaluated both implementations on DroidBench and 200 real-world apps. The results show that there is a favorable analysis direction for many apps and the right choice can reduce the runtime dramatically

Optical coupling of bare optoelectronic components and flexographically printed polymer waveguides in planar optronic systems

Large scale, planar optronic systems allowing spatially distributed functionalities can be well used in diverse sensor networks, such as for monitoring the environment by measuring various physical quantities in medicine or aeronautics. In these systems, mechanically flexible and optically transparent polymeric foils, e.g. polymethyl methacrylate (PMMA) and polyethylene terephthalate (PET), are employed as carrier materials. A benefit of using these materials is their low cost. The optical interconnections from light sources to light transmission structures in planar optronic systems occupy a pivotal position for the sensing functions. As light sources, we employ the optoelectronic components, such as edgeemitting laser diodes, in form of bare chips, since their extremely small structures facilitate a high integration compactness and ensure sufficient system flexibility. Flexographically printed polymer optical waveguides are deployed as light guiding structures for short-distance communication in planar optronic systems. Printing processes are utilized for this generation of waveguides to achieve a cost-efficient large scale and high-throughput production. In order to attain a high-functional optronic system for sensing applications, one of the most essential prerequisites is the high coupling efficiency between the light sources and the waveguides. Therefore, in this work, we focus on the multimode polymer waveguide with a parabolic cross-section and investigate its optical coupling with the bare laser diode. We establish the geometrical model of the alignment based on the previous works on the optodic bonding of bare laser diodes and the fabrication process of polymer waveguides with consideration of various parameters, such as the beam profile of the laser diode, the employed polymer properties of the waveguides as well as the carrier substrates etc. Accordingly, the optical coupling of the bare laser diodes and the polymer waveguides was simulated. Additionally, we demonstrate optical links by adopting the aforementioned processes used for defining the simulation. We verify the feasibility of the developed processes for planar optronic systems by using an active alignment and conduct discussions for further improvements of optical alignment. © 2016 SPIE.DFG/CRC/TR 12