Stepping Up Early Childhood Development : Investing in Young Children for High Returns

Investing in young children is one of the best investments that countries can make. A child s earliest years present a unique window of opportunity to address inequality, break the cycle of poverty, and improve a wide range of outcomes later in lif...

Full description

Bibliographic Details
Main Authors: Denboba, Amina D., Sayre, Rebecca K., Wodon, Quentin T., Elder, Leslie K., Rawlings, Laura B., Lombardi, Joan
Format: Working Paper
Language:English
en_US
Published: World Bank, Washington, DC 2015
Subjects:
ECD
Online Access:http://documents.worldbank.org/curated/en/2014/10/20479606/stepping-up-early-childhood-development-investing-young-children-high-returns
http://hdl.handle.net/10986/21094
id okr-10986-21094
recordtype oai_dc
repository_type Digital Repository
institution_category Foreign Institution
institution Digital Repositories
building World Bank Open Knowledge Repository
collection World Bank
language English
en_US
topic ACCESS TO HEALTH CARE
ACCESS TO HEALTH SERVICES
ADEQUATE DIET
AGED
ANTENATAL CARE
ANTENATAL VISITS
BABIES
BABY
BASIC EDUCATION
BASIC SANITATION
BEHAVIOR CHANGE
BIRTH REGISTRATION
BIRTH WEIGHT
BREAST FEEDING
BREASTFEEDING
BULLETIN
CAPACITY BUILDING
CARE FOR CHILDREN
CAREGIVER TRAINING
CAREGIVERS
CHILD CARE
CHILD DEVELOPMENT
CHILD GROWTH
CHILD HEALTH
CHILD HEALTH CARE
CHILD LABOR
CHILD MORBIDITY
CHILD MORTALITY
CHILD NUTRITION
CHILD PROTECTION
CHILD SURVIVAL
CHILDCARE
COMMUNITY DEVELOPMENT
COMMUNITY EDUCATION
COMPLEMENTARY FOOD
COMPLICATIONS
CONTRACEPTIVE METHODS
COUNSELORS
CYCLE OF POVERTY
DEATHS OF CHILDREN
DELIVERY COSTS
DEPRESSION
DEVELOPING COUNTRIES
DEVELOPMENT STRATEGIES
DEVELOPMENTAL PSYCHOLOGY
DIETS
DISABILITY
DISADVANTAGED CHILDREN
DISEASES
DOMESTIC VIOLENCE
DRINKING WATER
DROPOUT
DRUGS
EARLY CHILD DEVELOPMENT
EARLY CHILDHOOD
EARLY CHILDHOOD CARE
EARLY CHILDHOOD DEVELOPMENT
EARLY CHILDHOOD DEVELOPMENT PROGRAMS
EARLY CHILDHOOD EDUCATION
EARLY CHILDHOOD INTERVENTION
EARLY CHILDHOOD INTERVENTIONS
EARLY CHILDHOOD PROGRAMS
EARLY DEATH
EARLY MARRIAGE
ECCE
ECD
ECD POLICIES
ECD PROGRAMS
EMERGENCY OBSTETRIC CARE
EPIDEMIOLOGY
EQUITABLE ACCESS
EXPOSURE TO VIOLENCE
FAMILIES
FAMILY PLANNING
FAMILY PLANNING SERVICES
FAMILY SIZE
FAMILY SUPPORT
FOLIC ACID
FUTURE GROWTH
FUTURE MOTHERS
GENDER
GENDER INEQUALITY
GLOBAL HEALTH
GLOBAL POLICY
GROSS DOMESTIC PRODUCT
GROWTH MONITORING
HEALTH CARE
HEALTH INSURANCE
HEALTH INTERVENTIONS
HEALTH MINISTRIES
HEALTH OUTCOMES
HEALTH PLANNING
HEALTH POLICY
HEALTH RISKS
HEALTH SERVICES
HEALTH SYSTEM
HEALTH WORKERS
HEALTHCARE PROVIDERS
HOLISTIC DEVELOPMENT
HOME VISITING
HOME VISITS
HOSPITAL
HUMAN CAPITAL
HUMAN DEVELOPMENT
HYGIENE
ILL-HEALTH
ILLNESS
ILLNESSES
IMMUNIZATION
IMMUNIZATIONS
INDIVIDUAL DEVELOPMENT
INFANT
INFANT HEALTH
INFANT MORBIDITY
INFANT MORTALITY
INFANTS
INFERTILITY
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
INTERVENTION
IODINE DEFICIENCY
IRON
LABOR FORCE
LACK OF AWARENESS
LEARNING
LEARNING ACTIVITIES
LEVEL OF EDUCATION
LIFESTYLES
LOCAL AUTHORITIES
LOW BIRTH WEIGHT
MALARIA
MALNUTRITION
MALNUTRITION AMONG CHILDREN
MATERNAL CAUSES
MATERNAL DEATHS
MATERNAL HEALTH
MATERNAL MORTALITY
MENTAL
MENTAL DEVELOPMENT
MICRONUTRIENT SUPPLEMENTATION
MIGRATION
MINISTRY OF EDUCATION
MINISTRY OF HEALTH
MORBIDITY
MORTALITY
MOTHER
NATIONAL DEVELOPMENT
NATIONAL LEVEL
NEONATAL HEALTH
NEONATAL MORTALITY
NEWBORN
NEWBORN HEALTH
NEWBORNS
NUMBER OF CHILDREN
NUTRITION
NUTRITIONAL STATUS
OBSTETRIC COMPLICATIONS
OUTPATIENT CARE
PARENTAL LEAVE
PARENTING
PARENTING EDUCATION
PATIENT
PEDIATRICS
PHYSICAL DEVELOPMENT
PHYSICAL GROWTH
PHYSICAL HEALTH
POLICY DIALOGUE
POLICY FRAMEWORK
POLICY GOALS
POLICY MAKERS
POLICY RESEARCH
POLICY RESEARCH WORKING PAPER
POPULATION GROUPS
PRACTITIONERS
PREGNANCIES
PREGNANCY
PREGNANT WOMAN
PREGNANT WOMEN
PREPRIMARY EDUCATION
PRESCHOOL EDUCATION
PRESCHOOLS
PREVENTION INTERVENTIONS
PRIMARY EDUCATION
PRIMARY SCHOOL
PRIMARY SCHOOLS
PROGRESS
PUBLIC EDUCATION
PUBLIC HEALTH
QUALITY IMPROVEMENT
QUALITY SERVICES
REFERRAL SYSTEM
REGULATORY FRAMEWORKS
RESIDENTIAL CARE
RESPECT
RISK FACTORS
RURAL AREAS
SAFE WATER
SAFETY NET
SANITATION
SCHOOL ATTENDANCE
SCHOOL READINESS
SCREENING
SERVICE DELIVERY
SERVICE PROVIDERS
SERVICE PROVISION
SKILLED ATTENDANCE
SKILLED ATTENDANCE AT DELIVERY
SKILLED HEALTH PERSONNEL
SOCIAL NETWORKS
SOCIAL POLICY
SOCIAL SCIENCE
SOCIAL SERVICES
SOCIAL STATUS
SOCIAL SUPPORT
SOCIAL WELFARE
TETANUS
TREATMENT OF INFERTILITY
UNFPA
VACCINATION
VIOLENCE
VULNERABILITY
VULNERABLE FAMILIES
VULNERABLE GROUPS
WOMAN
WORKERS
WORLD HEALTH ORGANIZATION
YOUNG CHILD
YOUNG CHILDREN
spellingShingle ACCESS TO HEALTH CARE
ACCESS TO HEALTH SERVICES
ADEQUATE DIET
AGED
ANTENATAL CARE
ANTENATAL VISITS
BABIES
BABY
BASIC EDUCATION
BASIC SANITATION
BEHAVIOR CHANGE
BIRTH REGISTRATION
BIRTH WEIGHT
BREAST FEEDING
BREASTFEEDING
BULLETIN
CAPACITY BUILDING
CARE FOR CHILDREN
CAREGIVER TRAINING
CAREGIVERS
CHILD CARE
CHILD DEVELOPMENT
CHILD GROWTH
CHILD HEALTH
CHILD HEALTH CARE
CHILD LABOR
CHILD MORBIDITY
CHILD MORTALITY
CHILD NUTRITION
CHILD PROTECTION
CHILD SURVIVAL
CHILDCARE
COMMUNITY DEVELOPMENT
COMMUNITY EDUCATION
COMPLEMENTARY FOOD
COMPLICATIONS
CONTRACEPTIVE METHODS
COUNSELORS
CYCLE OF POVERTY
DEATHS OF CHILDREN
DELIVERY COSTS
DEPRESSION
DEVELOPING COUNTRIES
DEVELOPMENT STRATEGIES
DEVELOPMENTAL PSYCHOLOGY
DIETS
DISABILITY
DISADVANTAGED CHILDREN
DISEASES
DOMESTIC VIOLENCE
DRINKING WATER
DROPOUT
DRUGS
EARLY CHILD DEVELOPMENT
EARLY CHILDHOOD
EARLY CHILDHOOD CARE
EARLY CHILDHOOD DEVELOPMENT
EARLY CHILDHOOD DEVELOPMENT PROGRAMS
EARLY CHILDHOOD EDUCATION
EARLY CHILDHOOD INTERVENTION
EARLY CHILDHOOD INTERVENTIONS
EARLY CHILDHOOD PROGRAMS
EARLY DEATH
EARLY MARRIAGE
ECCE
ECD
ECD POLICIES
ECD PROGRAMS
EMERGENCY OBSTETRIC CARE
EPIDEMIOLOGY
EQUITABLE ACCESS
EXPOSURE TO VIOLENCE
FAMILIES
FAMILY PLANNING
FAMILY PLANNING SERVICES
FAMILY SIZE
FAMILY SUPPORT
FOLIC ACID
FUTURE GROWTH
FUTURE MOTHERS
GENDER
GENDER INEQUALITY
GLOBAL HEALTH
GLOBAL POLICY
GROSS DOMESTIC PRODUCT
GROWTH MONITORING
HEALTH CARE
HEALTH INSURANCE
HEALTH INTERVENTIONS
HEALTH MINISTRIES
HEALTH OUTCOMES
HEALTH PLANNING
HEALTH POLICY
HEALTH RISKS
HEALTH SERVICES
HEALTH SYSTEM
HEALTH WORKERS
HEALTHCARE PROVIDERS
HOLISTIC DEVELOPMENT
HOME VISITING
HOME VISITS
HOSPITAL
HUMAN CAPITAL
HUMAN DEVELOPMENT
HYGIENE
ILL-HEALTH
ILLNESS
ILLNESSES
IMMUNIZATION
IMMUNIZATIONS
INDIVIDUAL DEVELOPMENT
INFANT
INFANT HEALTH
INFANT MORBIDITY
INFANT MORTALITY
INFANTS
INFERTILITY
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
INTERVENTION
IODINE DEFICIENCY
IRON
LABOR FORCE
LACK OF AWARENESS
LEARNING
LEARNING ACTIVITIES
LEVEL OF EDUCATION
LIFESTYLES
LOCAL AUTHORITIES
LOW BIRTH WEIGHT
MALARIA
MALNUTRITION
MALNUTRITION AMONG CHILDREN
MATERNAL CAUSES
MATERNAL DEATHS
MATERNAL HEALTH
MATERNAL MORTALITY
MENTAL
MENTAL DEVELOPMENT
MICRONUTRIENT SUPPLEMENTATION
MIGRATION
MINISTRY OF EDUCATION
MINISTRY OF HEALTH
MORBIDITY
MORTALITY
MOTHER
NATIONAL DEVELOPMENT
NATIONAL LEVEL
NEONATAL HEALTH
NEONATAL MORTALITY
NEWBORN
NEWBORN HEALTH
NEWBORNS
NUMBER OF CHILDREN
NUTRITION
NUTRITIONAL STATUS
OBSTETRIC COMPLICATIONS
OUTPATIENT CARE
PARENTAL LEAVE
PARENTING
PARENTING EDUCATION
PATIENT
PEDIATRICS
PHYSICAL DEVELOPMENT
PHYSICAL GROWTH
PHYSICAL HEALTH
POLICY DIALOGUE
POLICY FRAMEWORK
POLICY GOALS
POLICY MAKERS
POLICY RESEARCH
POLICY RESEARCH WORKING PAPER
POPULATION GROUPS
PRACTITIONERS
PREGNANCIES
PREGNANCY
PREGNANT WOMAN
PREGNANT WOMEN
PREPRIMARY EDUCATION
PRESCHOOL EDUCATION
PRESCHOOLS
PREVENTION INTERVENTIONS
PRIMARY EDUCATION
PRIMARY SCHOOL
PRIMARY SCHOOLS
PROGRESS
PUBLIC EDUCATION
PUBLIC HEALTH
QUALITY IMPROVEMENT
QUALITY SERVICES
REFERRAL SYSTEM
REGULATORY FRAMEWORKS
RESIDENTIAL CARE
RESPECT
RISK FACTORS
RURAL AREAS
SAFE WATER
SAFETY NET
SANITATION
SCHOOL ATTENDANCE
SCHOOL READINESS
SCREENING
SERVICE DELIVERY
SERVICE PROVIDERS
SERVICE PROVISION
SKILLED ATTENDANCE
SKILLED ATTENDANCE AT DELIVERY
SKILLED HEALTH PERSONNEL
SOCIAL NETWORKS
SOCIAL POLICY
SOCIAL SCIENCE
SOCIAL SERVICES
SOCIAL STATUS
SOCIAL SUPPORT
SOCIAL WELFARE
TETANUS
TREATMENT OF INFERTILITY
UNFPA
VACCINATION
VIOLENCE
VULNERABILITY
VULNERABLE FAMILIES
VULNERABLE GROUPS
WOMAN
WORKERS
WORLD HEALTH ORGANIZATION
YOUNG CHILD
YOUNG CHILDREN
Denboba, Amina D.
Sayre, Rebecca K.
Wodon, Quentin T.
Elder, Leslie K.
Rawlings, Laura B.
Lombardi, Joan
Stepping Up Early Childhood Development : Investing in Young Children for High Returns
description Investing in young children is one of the best investments that countries can make. A child s earliest years present a unique window of opportunity to address inequality, break the cycle of poverty, and improve a wide range of outcomes later in life. Recent brain research suggests the need for holistic approaches to learning, growth, and development, recognizing that young children s physical and intellectual well-being, as well as their socio-emotional and cognitive development, are interrelated. To fully benefit from future opportunities in life and become productive members of society, by the end of early childhood, young children must be: healthy and well-nourished; securely attached to caregivers; able to interact positively with families, teachers, and peers; able to communicate in their native language; and ready to learn throughout primary school. This document draws on these existing frameworks and broad evidence on the impacts of ECD interventions. It summarizes some of the existing literature on this topic with the aim to identify key interventions needed for children. The document is intended to provide an easily accessible introduction to interventions and integrated services that could help policymakers and practitioners think about how to effectively invest in ECD. In addition to identifying key interventions, the document outlines four principles that can help countries design and implement strong ECD policies and programs. Countries should: (i) prepare an ECD diagnostic and strategy; (ii) implement widely through coordination; (iii) create synergies and cost savings through integrated interventions; and (iv) monitor, evaluate, and scale up successful interventions. In terms of interventions, within the ECD period, 25 key interventions are identified as essential for a child s growth and development. For each intervention, illustrative costs and impacts are provided. These are based on existing evidence and are only intended to be indicative. The document suggests that these interventions can be delivered through five integrated packages at different stages in a child s life. The five packages of interventions include: (a) the family support package, which should be provided throughout the ECD period, (b) the pregnancy package, (c) the birth package (from birth to six months), (d) the child health and development package, and (e) the preschool package.
format Publications & Research :: Working Paper
author Denboba, Amina D.
Sayre, Rebecca K.
Wodon, Quentin T.
Elder, Leslie K.
Rawlings, Laura B.
Lombardi, Joan
author_facet Denboba, Amina D.
Sayre, Rebecca K.
Wodon, Quentin T.
Elder, Leslie K.
Rawlings, Laura B.
Lombardi, Joan
author_sort Denboba, Amina D.
title Stepping Up Early Childhood Development : Investing in Young Children for High Returns
title_short Stepping Up Early Childhood Development : Investing in Young Children for High Returns
title_full Stepping Up Early Childhood Development : Investing in Young Children for High Returns
title_fullStr Stepping Up Early Childhood Development : Investing in Young Children for High Returns
title_full_unstemmed Stepping Up Early Childhood Development : Investing in Young Children for High Returns
title_sort stepping up early childhood development : investing in young children for high returns
publisher World Bank, Washington, DC
publishDate 2015
url http://documents.worldbank.org/curated/en/2014/10/20479606/stepping-up-early-childhood-development-investing-young-children-high-returns
http://hdl.handle.net/10986/21094
_version_ 1764447460028055552
spelling okr-10986-210942021-06-14T10:19:35Z Stepping Up Early Childhood Development : Investing in Young Children for High Returns Denboba, Amina D. Sayre, Rebecca K. Wodon, Quentin T. Elder, Leslie K. Rawlings, Laura B. Lombardi, Joan ACCESS TO HEALTH CARE ACCESS TO HEALTH SERVICES ADEQUATE DIET AGED ANTENATAL CARE ANTENATAL VISITS BABIES BABY BASIC EDUCATION BASIC SANITATION BEHAVIOR CHANGE BIRTH REGISTRATION BIRTH WEIGHT BREAST FEEDING BREASTFEEDING BULLETIN CAPACITY BUILDING CARE FOR CHILDREN CAREGIVER TRAINING CAREGIVERS CHILD CARE CHILD DEVELOPMENT CHILD GROWTH CHILD HEALTH CHILD HEALTH CARE CHILD LABOR CHILD MORBIDITY CHILD MORTALITY CHILD NUTRITION CHILD PROTECTION CHILD SURVIVAL CHILDCARE COMMUNITY DEVELOPMENT COMMUNITY EDUCATION COMPLEMENTARY FOOD COMPLICATIONS CONTRACEPTIVE METHODS COUNSELORS CYCLE OF POVERTY DEATHS OF CHILDREN DELIVERY COSTS DEPRESSION DEVELOPING COUNTRIES DEVELOPMENT STRATEGIES DEVELOPMENTAL PSYCHOLOGY DIETS DISABILITY DISADVANTAGED CHILDREN DISEASES DOMESTIC VIOLENCE DRINKING WATER DROPOUT DRUGS EARLY CHILD DEVELOPMENT EARLY CHILDHOOD EARLY CHILDHOOD CARE EARLY CHILDHOOD DEVELOPMENT EARLY CHILDHOOD DEVELOPMENT PROGRAMS EARLY CHILDHOOD EDUCATION EARLY CHILDHOOD INTERVENTION EARLY CHILDHOOD INTERVENTIONS EARLY CHILDHOOD PROGRAMS EARLY DEATH EARLY MARRIAGE ECCE ECD ECD POLICIES ECD PROGRAMS EMERGENCY OBSTETRIC CARE EPIDEMIOLOGY EQUITABLE ACCESS EXPOSURE TO VIOLENCE FAMILIES FAMILY PLANNING FAMILY PLANNING SERVICES FAMILY SIZE FAMILY SUPPORT FOLIC ACID FUTURE GROWTH FUTURE MOTHERS GENDER GENDER INEQUALITY GLOBAL HEALTH GLOBAL POLICY GROSS DOMESTIC PRODUCT GROWTH MONITORING HEALTH CARE HEALTH INSURANCE HEALTH INTERVENTIONS HEALTH MINISTRIES HEALTH OUTCOMES HEALTH PLANNING HEALTH POLICY HEALTH RISKS HEALTH SERVICES HEALTH SYSTEM HEALTH WORKERS HEALTHCARE PROVIDERS HOLISTIC DEVELOPMENT HOME VISITING HOME VISITS HOSPITAL HUMAN CAPITAL HUMAN DEVELOPMENT HYGIENE ILL-HEALTH ILLNESS ILLNESSES IMMUNIZATION IMMUNIZATIONS INDIVIDUAL DEVELOPMENT INFANT INFANT HEALTH INFANT MORBIDITY INFANT MORTALITY INFANTS INFERTILITY INTERNATIONAL JOURNAL OF EPIDEMIOLOGY INTERVENTION IODINE DEFICIENCY IRON LABOR FORCE LACK OF AWARENESS LEARNING LEARNING ACTIVITIES LEVEL OF EDUCATION LIFESTYLES LOCAL AUTHORITIES LOW BIRTH WEIGHT MALARIA MALNUTRITION MALNUTRITION AMONG CHILDREN MATERNAL CAUSES MATERNAL DEATHS MATERNAL HEALTH MATERNAL MORTALITY MENTAL MENTAL DEVELOPMENT MICRONUTRIENT SUPPLEMENTATION MIGRATION MINISTRY OF EDUCATION MINISTRY OF HEALTH MORBIDITY MORTALITY MOTHER NATIONAL DEVELOPMENT NATIONAL LEVEL NEONATAL HEALTH NEONATAL MORTALITY NEWBORN NEWBORN HEALTH NEWBORNS NUMBER OF CHILDREN NUTRITION NUTRITIONAL STATUS OBSTETRIC COMPLICATIONS OUTPATIENT CARE PARENTAL LEAVE PARENTING PARENTING EDUCATION PATIENT PEDIATRICS PHYSICAL DEVELOPMENT PHYSICAL GROWTH PHYSICAL HEALTH POLICY DIALOGUE POLICY FRAMEWORK POLICY GOALS POLICY MAKERS POLICY RESEARCH POLICY RESEARCH WORKING PAPER POPULATION GROUPS PRACTITIONERS PREGNANCIES PREGNANCY PREGNANT WOMAN PREGNANT WOMEN PREPRIMARY EDUCATION PRESCHOOL EDUCATION PRESCHOOLS PREVENTION INTERVENTIONS PRIMARY EDUCATION PRIMARY SCHOOL PRIMARY SCHOOLS PROGRESS PUBLIC EDUCATION PUBLIC HEALTH QUALITY IMPROVEMENT QUALITY SERVICES REFERRAL SYSTEM REGULATORY FRAMEWORKS RESIDENTIAL CARE RESPECT RISK FACTORS RURAL AREAS SAFE WATER SAFETY NET SANITATION SCHOOL ATTENDANCE SCHOOL READINESS SCREENING SERVICE DELIVERY SERVICE PROVIDERS SERVICE PROVISION SKILLED ATTENDANCE SKILLED ATTENDANCE AT DELIVERY SKILLED HEALTH PERSONNEL SOCIAL NETWORKS SOCIAL POLICY SOCIAL SCIENCE SOCIAL SERVICES SOCIAL STATUS SOCIAL SUPPORT SOCIAL WELFARE TETANUS TREATMENT OF INFERTILITY UNFPA VACCINATION VIOLENCE VULNERABILITY VULNERABLE FAMILIES VULNERABLE GROUPS WOMAN WORKERS WORLD HEALTH ORGANIZATION YOUNG CHILD YOUNG CHILDREN Investing in young children is one of the best investments that countries can make. A child s earliest years present a unique window of opportunity to address inequality, break the cycle of poverty, and improve a wide range of outcomes later in life. Recent brain research suggests the need for holistic approaches to learning, growth, and development, recognizing that young children s physical and intellectual well-being, as well as their socio-emotional and cognitive development, are interrelated. To fully benefit from future opportunities in life and become productive members of society, by the end of early childhood, young children must be: healthy and well-nourished; securely attached to caregivers; able to interact positively with families, teachers, and peers; able to communicate in their native language; and ready to learn throughout primary school. This document draws on these existing frameworks and broad evidence on the impacts of ECD interventions. It summarizes some of the existing literature on this topic with the aim to identify key interventions needed for children. The document is intended to provide an easily accessible introduction to interventions and integrated services that could help policymakers and practitioners think about how to effectively invest in ECD. In addition to identifying key interventions, the document outlines four principles that can help countries design and implement strong ECD policies and programs. Countries should: (i) prepare an ECD diagnostic and strategy; (ii) implement widely through coordination; (iii) create synergies and cost savings through integrated interventions; and (iv) monitor, evaluate, and scale up successful interventions. In terms of interventions, within the ECD period, 25 key interventions are identified as essential for a child s growth and development. For each intervention, illustrative costs and impacts are provided. These are based on existing evidence and are only intended to be indicative. The document suggests that these interventions can be delivered through five integrated packages at different stages in a child s life. The five packages of interventions include: (a) the family support package, which should be provided throughout the ECD period, (b) the pregnancy package, (c) the birth package (from birth to six months), (d) the child health and development package, and (e) the preschool package. 2015-01-05T23:25:58Z 2015-01-05T23:25:58Z 2014-10 http://documents.worldbank.org/curated/en/2014/10/20479606/stepping-up-early-childhood-development-investing-young-children-high-returns http://hdl.handle.net/10986/21094 English en_US CC BY 3.0 IGO http://creativecommons.org/licenses/by/3.0/igo/ World Bank, Washington, DC Publications & Research :: Working Paper Publications & Research