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11.
Policy Determinants of School Outcomes under Model Uncertainty: Evidence from South Africa
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Fabrice Murtin Thomas Laurent Geoff Barnard Dean Janse van Rensburg Vijay Reddy George Frempong Lolita Winnaar 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2015,83(3):317-334
In this paper, we assess the determinants of secondary school outcomes in South Africa. We use Bayesian model averaging techniques to account for uncertainty in the set of underlying factors that are chosen among a very large pool of explanatory variables in order to identify the subset of explanatory variables most strongly associated with the dependent variable. Our analysis indicates that the socio‐economic background of pupils, demographic characteristics such as population groups (Black and White), as well as geographical locations account for a significant variation in pupils’ achievement levels. We also find that the most robust policy determinants of pupils’ test scores are the availability of a library at school, the use of IT in the classroom as well as school climate. 相似文献
12.
We examine how allowing individuals to emigrate to pay lower taxes changes the optimal nonlinear income tax scheme in a Mirrleesian economy. An individual emigrates if his domestic utility is less than his utility abroad, net of migration costs — utilities and costs both depending on productivity. A simple formula, that complements Saez's formula obtained in closed economy, is derived for the marginal tax rates faced by top-income earners. It depends on the labour elasticity, the tax rate abroad and the migration costs expressed as a fraction of the utility obtained abroad. The Rawlsian marginal tax rates, obtained for the whole population, illustrate a curse of the middle-skilled. Simulations are provided for the French economy. 相似文献
13.
In this paper we give upper bounds for both the Value at Risk VaR α , 0 < α < 1 , and for ruin probabilities associated with the supremum of a process driven by a Brownian motion and a compound Poisson process. We obtain lower bounds for the same Value at Risk, and for different cases we discuss the behavior of the bounds for small α. We prove our bounds are "asymptotically" optimal, as α tends to zero. The ruin probabilities obtained are related to other bounds found in recent literature. 相似文献
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This paper examines the determinants of the time it takes foran index options market to return to no arbitrage values afterput-call parity deviations, using intraday transactions datafrom the French index options market. We employ survival analysisto characterize how limits to arbitrage influence the expectedduration of arbitrage deviations. After controlling for conventionallimits to arbitrage, we show that liquidity-linked variablesare associated with a faster reversion of arbitrage profits.The introduction of an Exchange Traded Fund also affects thesurvival rates of deviations, but this impact essentially stemsfrom the reduction in the level of potential arbitrage profits. 相似文献
16.
Relational selling strategy and key account managers' relational behaviors: An exploratory study 总被引:1,自引:0,他引:1
Paolo Guenzi Author Vitae Catherine Pardo Author Vitae Laurent Georges Author Vitae 《Industrial Marketing Management》2007,36(1):121-133
Many companies see key account management as a potentially successful way to implement a relational strategy. Nevertheless, the literature suggests that strategy implementation at the sales force level is difficult to achieve, mainly because salespeople may not understand - nor accept - what they are requested to do. Despite their relevance, behaviors of key account managers have poorly been investigated. This article defines and tests a model of relational selling behaviors from the part of key account managers. Results show that the perception of the adoption of a relational selling strategy is associated with some specific key account managers' behaviors (customer-oriented selling, adaptive selling and team selling), but not with others (organizational citizenship behaviors). These findings suggest that potential discrepancies can exist between a relational selling strategy and its implementation at the key account manager level. Based on these results, theoretical and managerial implications are discussed. 相似文献
17.
Jean-Yves Gnabo Sébastien Laurent Christelle Lecourt 《Journal of International Financial Markets, Institutions & Money》2009,19(1):94-111
This paper empirically investigates the induced effect of a more and less transparent central bank intervention (CBI) policy on rumors that can emerge. Using the case of Japan, we estimate a dynamic-probit model that explains the main determinants of false reports (i.e. falsely reported interventions) and anticipative rumors (i.e. rumors about future interventions) with reference to the intervention strategy adopted by the central bank for actual and oral interventions, and the uncertainty climate of the market captured by two volatility measures. Our results suggest that the induced effect of a transparent CBI policy on market rumors critically depends on the type of speeches made by officials. 相似文献
18.
Laurent Linnemer 《The Rand journal of economics》2015,46(2):217-240
We study the exclusionary properties of nonlinear price‐quantity schedules in an Aghion‐Bolton style model with elastic demand and product differentiation. We distinguish three regimes, depending on whether and how the price charged by the dominant firm depends on the quantity purchased from the rival firm. We find that the supply of rival good is distorted downward. Moreover, given the quantity supplied from the rival, the buyer may opportunistically purchase inefficiently many units from the dominant firm to pocket quantity rebates. We show that the possibility for the buyer to dispose of unconsumed units attenuates the opportunism problem and limits the exclusionary effects of nonlinear pricing. 相似文献
19.
Engineering Hedonic Attributes to Generate Perceptions of Luxury: Consumer Perception of an Everyday Sound 总被引:2,自引:0,他引:2
For the last twenty years, the perception of hedonic attributes has been a problematic matter in consumer research. We argue that the perception of a hedonic product attribute should not be considered as an irreducible holistic experience, but rather as a complex set of sensory experiences, the components of which are identifiable and quantifiable. We provide evidence for this position by proposing a reliable method linking the features of product-related sound stimuli to consumer perception of hedonic attributes. To our knowledge, this study is the first of its kind offering a detailed investigation of consumer perception of everyday sounds (as opposed to music). We discuss managerial and consumer-level implications of the findings and provide an agenda for future research. 相似文献
20.
The aim of this paper is to investigate the long run relationship between the development of banks and stock markets and economic growth. We make use of a Johansen-based panel cointegration methodology allowing for cross-country dependence to test the number of cointegrating vectors among these three variables for 5 developing countries. In addition, we test the direction of potential causality between financial and economic development. Our results conclude to the existence of a single cointegrating vector between financial development and growth and of causality going from financial development to economic growth. We find little evidence of reverse causation as well as bi-directional causality. We interpret this as evidence supporting the significance of financial development for economic development although banks and stock markets may have different effects depending on the level of economic development. 相似文献