Experience

Publications

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• Child death in the United States: productivity and the economic burden of parental grief.

  Death Studies

  This article examines the economic consequences associated with the death of a child. The economic costs (funeral and medical expenses and productivity losses) of child death 6 months following the death were estimated based on 213 parents who had experienced the death of a child (usually unexpectedly and predominantly mothers). Findings suggest that productivity losses associated with child death comprise most of the costs and that the economic effects are substantial. Costs associated with on-the-job productivity losses ("presenteeism"​) outweigh the costs associated with absenteeism. To date, no research has empirically measured both absenteeism and presenteeism following bereavement.

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• Child death in the United States: productivity and the economic burden of parental grief.

  Death Studies

  This article examines the economic consequences associated with the death of a child. The economic costs (funeral and medical expenses and productivity losses) of child death 6 months following the death were estimated based on 213 parents who had experienced the death of a child (usually unexpectedly and predominantly mothers). Findings suggest that productivity losses associated with child death comprise most of the costs and that the economic effects are substantial. Costs associated with on-the-job productivity losses ("presenteeism"​) outweigh the costs associated with absenteeism. To date, no research has empirically measured both absenteeism and presenteeism following bereavement.

• Patent Citations and the Geography of Knowledge Spillovers

  American Economic Review

  Jaffe, Trajtenberg and Henderson (Quarterly Journal of Economics, 108(3):577-98, 1993) developed a matching method to study the geography of knowledge spillovers using patent citations, and found that knowledge spillovers are strongly localized. Their method matches each citing patent to a non-citing patent intended to control for the pre-existing geographic concentration of production. We show how the method of selecting the control group may induce spurious evidence of localized spillovers. This paper reassesses their findings using control patents selected under different criteria. Doing so eliminates evidence of strong intranational localization effects at the state and metropolitan levels, but leaves largely unaffected evidence of international localization effects.

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• Child death in the United States: productivity and the economic burden of parental grief.

  Death Studies

  This article examines the economic consequences associated with the death of a child. The economic costs (funeral and medical expenses and productivity losses) of child death 6 months following the death were estimated based on 213 parents who had experienced the death of a child (usually unexpectedly and predominantly mothers). Findings suggest that productivity losses associated with child death comprise most of the costs and that the economic effects are substantial. Costs associated with on-the-job productivity losses ("presenteeism"​) outweigh the costs associated with absenteeism. To date, no research has empirically measured both absenteeism and presenteeism following bereavement.

• Patent Citations and the Geography of Knowledge Spillovers

  American Economic Review

  Jaffe, Trajtenberg and Henderson (Quarterly Journal of Economics, 108(3):577-98, 1993) developed a matching method to study the geography of knowledge spillovers using patent citations, and found that knowledge spillovers are strongly localized. Their method matches each citing patent to a non-citing patent intended to control for the pre-existing geographic concentration of production. We show how the method of selecting the control group may induce spurious evidence of localized spillovers. This paper reassesses their findings using control patents selected under different criteria. Doing so eliminates evidence of strong intranational localization effects at the state and metropolitan levels, but leaves largely unaffected evidence of international localization effects.

• Economics Demystified

  McGraw Hill Professional

  Economics DeMYSTiFieD is a curriculum-based, self-teaching guide that makes learning this important business topic easier than ever. Filled with illustrations, plain-English explanations, and real-life examples, it starts with the fundamentals and eases you into the more complicated theories, concepts, and mathematical formulas.

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• Child death in the United States: productivity and the economic burden of parental grief.

  Death Studies

  This article examines the economic consequences associated with the death of a child. The economic costs (funeral and medical expenses and productivity losses) of child death 6 months following the death were estimated based on 213 parents who had experienced the death of a child (usually unexpectedly and predominantly mothers). Findings suggest that productivity losses associated with child death comprise most of the costs and that the economic effects are substantial. Costs associated with on-the-job productivity losses ("presenteeism"​) outweigh the costs associated with absenteeism. To date, no research has empirically measured both absenteeism and presenteeism following bereavement.

• Patent Citations and the Geography of Knowledge Spillovers

  American Economic Review

  Jaffe, Trajtenberg and Henderson (Quarterly Journal of Economics, 108(3):577-98, 1993) developed a matching method to study the geography of knowledge spillovers using patent citations, and found that knowledge spillovers are strongly localized. Their method matches each citing patent to a non-citing patent intended to control for the pre-existing geographic concentration of production. We show how the method of selecting the control group may induce spurious evidence of localized spillovers. This paper reassesses their findings using control patents selected under different criteria. Doing so eliminates evidence of strong intranational localization effects at the state and metropolitan levels, but leaves largely unaffected evidence of international localization effects.

• Economics Demystified

  McGraw Hill Professional

  Economics DeMYSTiFieD is a curriculum-based, self-teaching guide that makes learning this important business topic easier than ever. Filled with illustrations, plain-English explanations, and real-life examples, it starts with the fundamentals and eases you into the more complicated theories, concepts, and mathematical formulas.

• Strive for a 5 Microeconomics

  MacMillan Learning

  Strive for a 5: Preparing for the AP® Microeconomics Examination provides a thorough review of microeconomics with essential tips for test preparation. This guide aligns with the second editions of the acclaimed Krugman AP® economics textbooks. Written by an expert teacher with extensive experience with the exam, this guide helps students evaluate their understanding of the material covered in the textbook, reinforce key concepts, develop conceptual understanding and graphing skills, and prepare to succeed on the test.

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• Child death in the United States: productivity and the economic burden of parental grief.

  Death Studies

  This article examines the economic consequences associated with the death of a child. The economic costs (funeral and medical expenses and productivity losses) of child death 6 months following the death were estimated based on 213 parents who had experienced the death of a child (usually unexpectedly and predominantly mothers). Findings suggest that productivity losses associated with child death comprise most of the costs and that the economic effects are substantial. Costs associated with on-the-job productivity losses ("presenteeism"​) outweigh the costs associated with absenteeism. To date, no research has empirically measured both absenteeism and presenteeism following bereavement.

• Patent Citations and the Geography of Knowledge Spillovers

  American Economic Review

  Jaffe, Trajtenberg and Henderson (Quarterly Journal of Economics, 108(3):577-98, 1993) developed a matching method to study the geography of knowledge spillovers using patent citations, and found that knowledge spillovers are strongly localized. Their method matches each citing patent to a non-citing patent intended to control for the pre-existing geographic concentration of production. We show how the method of selecting the control group may induce spurious evidence of localized spillovers. This paper reassesses their findings using control patents selected under different criteria. Doing so eliminates evidence of strong intranational localization effects at the state and metropolitan levels, but leaves largely unaffected evidence of international localization effects.

• Economics Demystified

  McGraw Hill Professional

  Economics DeMYSTiFieD is a curriculum-based, self-teaching guide that makes learning this important business topic easier than ever. Filled with illustrations, plain-English explanations, and real-life examples, it starts with the fundamentals and eases you into the more complicated theories, concepts, and mathematical formulas.

• Strive for a 5 Microeconomics

  MacMillan Learning

  Strive for a 5: Preparing for the AP® Microeconomics Examination provides a thorough review of microeconomics with essential tips for test preparation. This guide aligns with the second editions of the acclaimed Krugman AP® economics textbooks. Written by an expert teacher with extensive experience with the exam, this guide helps students evaluate their understanding of the material covered in the textbook, reinforce key concepts, develop conceptual understanding and graphing skills, and prepare to succeed on the test.

• 500 Macroeconomic Questions

  McGraw Hill

  The 500 practice questions are similar to course exam questions so you will know what to expect on test day. Each question includes a fully detailed answer that puts the subject in context. This additional practice helps you build your knowledge, strengthen test-taking skills, and build confidence. From supply and demand to market models, this book covers the key topics in macroeconomics.

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• Child death in the United States: productivity and the economic burden of parental grief.

  Death Studies

  This article examines the economic consequences associated with the death of a child. The economic costs (funeral and medical expenses and productivity losses) of child death 6 months following the death were estimated based on 213 parents who had experienced the death of a child (usually unexpectedly and predominantly mothers). Findings suggest that productivity losses associated with child death comprise most of the costs and that the economic effects are substantial. Costs associated with on-the-job productivity losses ("presenteeism"​) outweigh the costs associated with absenteeism. To date, no research has empirically measured both absenteeism and presenteeism following bereavement.

• Patent Citations and the Geography of Knowledge Spillovers

  American Economic Review

  Jaffe, Trajtenberg and Henderson (Quarterly Journal of Economics, 108(3):577-98, 1993) developed a matching method to study the geography of knowledge spillovers using patent citations, and found that knowledge spillovers are strongly localized. Their method matches each citing patent to a non-citing patent intended to control for the pre-existing geographic concentration of production. We show how the method of selecting the control group may induce spurious evidence of localized spillovers. This paper reassesses their findings using control patents selected under different criteria. Doing so eliminates evidence of strong intranational localization effects at the state and metropolitan levels, but leaves largely unaffected evidence of international localization effects.

• Economics Demystified

  McGraw Hill Professional

  Economics DeMYSTiFieD is a curriculum-based, self-teaching guide that makes learning this important business topic easier than ever. Filled with illustrations, plain-English explanations, and real-life examples, it starts with the fundamentals and eases you into the more complicated theories, concepts, and mathematical formulas.

• Strive for a 5 Microeconomics

  MacMillan Learning

  Strive for a 5: Preparing for the AP® Microeconomics Examination provides a thorough review of microeconomics with essential tips for test preparation. This guide aligns with the second editions of the acclaimed Krugman AP® economics textbooks. Written by an expert teacher with extensive experience with the exam, this guide helps students evaluate their understanding of the material covered in the textbook, reinforce key concepts, develop conceptual understanding and graphing skills, and prepare to succeed on the test.

• 500 Macroeconomic Questions

  McGraw Hill

  The 500 practice questions are similar to course exam questions so you will know what to expect on test day. Each question includes a fully detailed answer that puts the subject in context. This additional practice helps you build your knowledge, strengthen test-taking skills, and build confidence. From supply and demand to market models, this book covers the key topics in macroeconomics.

• The effects of maternal education versus cognitive test scores on child nutrition in Kenya

  Economics and Human Biology

  This paper estimates dynamic random effects models for intakes by dietary energy, protein, calcium, iron, zinc, niacin, riboflavin, thiamin, and vitamins A, C, D, and E 100 of Kenyan school children (6-9 years) within a multivariate longitudinal framework. The explanatory variables were socioeconomic and background variables, children's body mass index, and maternal education, cognitive test scores and morbidity spells. The model parameters are estimated using the maximum likelihood method controlling for unobserved between-children differences. The main finding is that while maternal education was usually not a significant predictor of dietary intakes, maternal scores on cognitive tests did strongly predict them. Moreover, the paternal cognitive scores and maternal morbidity levels were not significantly associated with the intakes, but an index of socioeconomic status and cash income was a significant predictor. The results indicate the need to consider broader measures of human development and of devising suitable educational programs for women without formal education.

• Child death in the United States: productivity and the economic burden of parental grief.

  Death Studies

  This article examines the economic consequences associated with the death of a child. The economic costs (funeral and medical expenses and productivity losses) of child death 6 months following the death were estimated based on 213 parents who had experienced the death of a child (usually unexpectedly and predominantly mothers). Findings suggest that productivity losses associated with child death comprise most of the costs and that the economic effects are substantial. Costs associated with on-the-job productivity losses ("presenteeism"​) outweigh the costs associated with absenteeism. To date, no research has empirically measured both absenteeism and presenteeism following bereavement.

• Patent Citations and the Geography of Knowledge Spillovers

  American Economic Review

  Jaffe, Trajtenberg and Henderson (Quarterly Journal of Economics, 108(3):577-98, 1993) developed a matching method to study the geography of knowledge spillovers using patent citations, and found that knowledge spillovers are strongly localized. Their method matches each citing patent to a non-citing patent intended to control for the pre-existing geographic concentration of production. We show how the method of selecting the control group may induce spurious evidence of localized spillovers. This paper reassesses their findings using control patents selected under different criteria. Doing so eliminates evidence of strong intranational localization effects at the state and metropolitan levels, but leaves largely unaffected evidence of international localization effects.

• Economics Demystified

  McGraw Hill Professional

  Economics DeMYSTiFieD is a curriculum-based, self-teaching guide that makes learning this important business topic easier than ever. Filled with illustrations, plain-English explanations, and real-life examples, it starts with the fundamentals and eases you into the more complicated theories, concepts, and mathematical formulas.

• Strive for a 5 Microeconomics

  MacMillan Learning

  Strive for a 5: Preparing for the AP® Microeconomics Examination provides a thorough review of microeconomics with essential tips for test preparation. This guide aligns with the second editions of the acclaimed Krugman AP® economics textbooks. Written by an expert teacher with extensive experience with the exam, this guide helps students evaluate their understanding of the material covered in the textbook, reinforce key concepts, develop conceptual understanding and graphing skills, and prepare to succeed on the test.

• 500 Macroeconomic Questions

  McGraw Hill

  The 500 practice questions are similar to course exam questions so you will know what to expect on test day. Each question includes a fully detailed answer that puts the subject in context. This additional practice helps you build your knowledge, strengthen test-taking skills, and build confidence. From supply and demand to market models, this book covers the key topics in macroeconomics.

• Strive for a 5 Macroeconomics

  MacMillan Learning

  Strive for a 5: Preparing for the AP® Macroeconomics Examination provides a thorough review of macroeconomics with essential tips for test preparation. This guide aligns with the second editions of the acclaimed Krugman AP® economics textbooks. Written by an expert teacher with extensive experience with the exam, this guide helps students evaluate their understanding of the material covered in the textbook, reinforce key concepts, develop conceptual understanding and graphing skills, and prepare to succeed on the test.