The Experts below are selected from a list of 287274 Experts worldwide ranked by ideXlab platform
Wei Xia - One of the best experts on this subject based on the ideXlab platform.
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analytic models of the roc curve applications to credit rating model validation
Social Science Research Network, 2007Co-Authors: Stephen Satchell, Wei XiaAbstract:In this paper, the authors use the concept of the population Receiver Operating Characteristic (ROC) curve to build analytic models of ROC curves. Information about the population properties can be used to gain greater accuracy of estimation relative to the non-parametric methods currently in vogue. If used properly, this is particularly helpful in some situations where the number of sick loans is rather small, a situation frequently met in practice and in periods of benign macro-Economic Background.
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analytic models of the roc curve applications to credit rating model validation
Research Paper Series, 2006Co-Authors: Stephen Satchel, Wei XiaAbstract:In this paper, the authors use the concept of the population ROC curve to build analytic models of ROC curves. Information about the population properties can be used to gain greater accuracy of estimation relative to the non-parametric methods currently in vogue. If used properly this is particularly helpful in some situations where the number of sick loans is rather small; a situation frequently met in periods of benign macro-Economic Background.
Ludger Woessmann - One of the best experts on this subject based on the ideXlab platform.
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fundamental determinants of school efficiency and equity german states as a microcosm for oecd countries
Social Science Research Network, 2007Co-Authors: Ludger WoessmannAbstract:Cross-country evidence on student achievement might be hampered by omitted country characteristics such as language or legal differences. This paper uses cross-state variation in Germany, whose sixteen states share the same language and legal system, but pursue different education policies. The same results found previously across countries hold within Germany: Higher mean student performance is associated with central exams, private school operation, and socio-Economic Background, but not with spending, while higher equality of opportunity is associated with reduced tracking. In a model that pools German states with OECD countries, these fundamental determinants do not differ significantly between the two samples.
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fundamental determinants of school efficiency and equity german states as a microcosm for oecd countries
Munich Reprints in Economics, 2007Co-Authors: Ludger WoessmannAbstract:Cross-country evidence on student achievement might be hampered byomitted country characteristics such as language or legal differences.This paper uses cross-state variation in Germany, whose sixteen statesshare the same language and legal system, but pursue different educationpolicies. Education production function models are estimated usingstate-level PISA-E data, where possible pooling three subjects and threewaves to obtain up to 138 test-score observations. The same resultsfound previously across countries hold within Germany: Higher meanstudent performance is associated with central exams, private schooloperation, and socio-Economic Background, but not with spending, whilehigher equality of opportunity is associated with reduced tracking. Inmodels that pool German states with OECD countries and combine up to 54state and country observations, these institutional determinants do notdiffer significantly between the sample of German states and the sampleof OECD countries, indicating that the existing cross-country evidenceis not substantially biased by unobserved country-specific factors.
Michaela Benzeval - One of the best experts on this subject based on the ideXlab platform.
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adolescent smoking and tertiary education opposing pathways linking socio Economic Background to alcohol consumption
Addiction, 2016Co-Authors: Michael J Green, Helen Sweeting, Alastair H Leyland, Michaela BenzevalAbstract:Background and Aims If socio‐Economic disadvantage is associated with more adolescent smoking, but less participation in tertiary education, and smoking and tertiary education are both associated with heavier drinking, these may represent opposing pathways to heavy drinking. This paper examines contextual variation in the magnitude and direction of these associations.
Jan Fidrmuc - One of the best experts on this subject based on the ideXlab platform.
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stability of monetary unions lessons from the break up of czechoslovakia
Transition Economics Series, 1999Co-Authors: Julius Horvath, Jan FidrmucAbstract:In 1993, Czechoslovakia experienced a two-fold break-up: On January 1, the country disintegrated as a political union, while preserving an Economic and monetary union. Then, the Czech-Slovak monetary union collapsed on February 8. We analyze the Economic Background of the two break-ups, and discuss lessons for the stability of monetary unions in general. We argue that Czechoslovakia fulfilled some of the optimum currency area criteria, however, given the low correlation of permanent shocks, it appears it was relatively less integrated than some other existing unions. That, along with low labor mobility and a higher concentration of heavy and military industries in Slovakia, made the Czechoslovak economy vulnerable to asymmetric Economic shocks-such as those induced by the Economic transition. Furthermore, the Czech-Slovak monetary union was marred by low credibility, lack of political commitment, low exit costs, and the absence of fiscal transfers.
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stability of monetary unions lessons from the break up of czechoslovakia
1998Co-Authors: Julius Horvath, Jan FidrmucAbstract:In 1993, Czechoslovakia experienced a two-fold break-up: On January 1, the country disintegrated as a political union, while preserving an Economic and monetary union. Then, the Czech-Slovak monetary union collapsed on February 8. We analyze the Economic Background of the two break-ups, and discuss lessons for stability of monetary unions in general. We argue that Czechoslovakia fulfilled some of the optimum currency area criteria; however, given the low correlation of permanent shocks, it appears it was relatively less integrated than some other existing unions. That, along with low labor mobility and higher concentration of heavy and military industries in Slovakia, made Czechoslovak economy vulnerable to asymmetric Economic shocks-such as those induced by the Economic transition. Furthermore, the Czech-Slovak monetary union was marred by low credibility, lack of political commitment, low exit costs, and the absence of fiscal transfers.
Modibo Sidibe - One of the best experts on this subject based on the ideXlab platform.
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estimating the value of higher education financial aid evidence from a field experiment
National Bureau of Economic Research, 2020Co-Authors: Christian Belzil, Arnaud Maurel, Modibo SidibeAbstract:Using data from a Canadian field experiment on the financial barriers to higher education, we estimate the distribution of the value of financial aid for prospective students, and relate it to parental socio-Economic Background, individual skills, risk and time preferences. Our results point out that a considerable share of prospective students are affected by credit constraints. We find that most of the individuals are willing to pay a sizable interest premium above the prevailing market rate for the option to take up a loan, with a median interest rate wedge equal to 6.6 percentage points for a $1,000 loan. The willingness-to-pay for financial aid is highly heterogeneous across students, with preferences and in particular discount factors, playing a key role in accounting for this variation.
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estimating the value of higher education financial aid evidence from a field experiment
2016Co-Authors: Christian Belzil, Arnaud Maurel, Modibo SidibeAbstract:Using data from a Canadian field experiment designed to elicit risk and time preferences and quantify financial barriers to higher education, we estimate the distribution of the value of financial aid for prospective students, and relate it to parental socio-Economic Background, individual skills, risk and time preferences. Our results point to credit constraints affecting a sizable share of prospective students. We find that most of the individuals are willing to pay a sizable interest premium above the prevailing market rate for the option to take-up a loan, with a median interest rate wedge equal to 6.6 percentage points for a $1,000 loan. The willingness-to-pay for financial aid is also highly heterogeneous across students, with preferences, in particular discount factors, playing a key role in accounting for this variation.
