Prices and Unit Values in Poverty Measurement and Tax Reform Analysis
Researchers often use unit values (household expenditures on a commodity divided by the quantity purchased) as proxies for market prices when calculating poverty lines and estimating consumer demand equations. Such proxies are often needed because...
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| Format: | Journal Article |
| Language: | English en_US |
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Published by Oxford University Press on behalf of the World Bank
2014
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| Online Access: | http://documents.worldbank.org/curated/en/2005/01/17747626/prices-unit-values-poverty-measurement-tax-reform-analysis http://hdl.handle.net/10986/16485 |
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okr-10986-164852021-04-23T14:03:29Z Prices and Unit Values in Poverty Measurement and Tax Reform Analysis Gibson, John Rozelle, Scott ADMINISTRATIVE COST AVERAGE PRICE AVERAGE PRICES BRAND BRAND NAME COMMODITIES COMMODITY CONSUMER DEMAND CONSUMER PRICE CONSUMPTION EXPENDITURE CONSUMPTION EXPENDITURES COST OF LIVING DATA ENTRY DEMAND ANALYSIS DEMAND FUNCTIONS DEMOGRAPHIC DEVALUATION DEVELOPING COUNTRIES DEVELOPING ECONOMIES DUMMY VARIABLES DURABLE DURABLE ASSETS DURABLES E-MAIL ECONOMIC CRISES ECONOMIC CRISIS ECONOMIC DEVELOPMENT EMAIL ADDRESS EXCHANGE RATES EXPENDITURE EXPENDITURES FINANCIAL CRISIS FINANCIAL SUPPORT FISCAL POLICY FIXED COST HOUSEHOLD INCOME INCOME INCOME TAX INDUSTRIAL COUNTRIES INFLATION INFLATION RATE INFLATION RATES INNOVATION INSTRUMENT INTERNATIONAL BANK INTERNATIONAL TRADE INVENTORY LIVING STANDARDS LOCAL MARKET MARKET LIBERALIZATION MARKET PRICE MARKET PRICES MARKET SURVEY MARKET SURVEYS MARKETPLACE MISSING DATA MISSING VALUES MONOPOLIES PHOTO PHOTOS POWER PARITY PRICE CHANGES PRICE DERIVATIVE PRICE ELASTICITY OF DEMAND PRICE INFORMATION PRICE POLICY PRICE SERIES PRICE VARIATION PRICE VARIATIONS PRICING POLICIES PRICING POLICY PRODUCE MARKET PRODUCE MARKETS PUBLIC POLICY PURCHASING PURCHASING POWER RELIABILITY RESULT RESULTS RURAL MARKETS SALES SECURITY POLICIES SOCIAL COST SOCIAL COSTS SPREAD SUBSTITUTE SUBSTITUTION SUPERMARKETS TAX TAX POLICIES TAX POLICY TAX RATE TAX RATES TRACK RECORD TRADE LIBERALIZATION USERS USES VALUATIONS WEB WEB SITE Researchers often use unit values (household expenditures on a commodity divided by the quantity purchased) as proxies for market prices when calculating poverty lines and estimating consumer demand equations. Such proxies are often needed because community price surveys in developing economies are either absent or suffer quality problems. However, using unit values may result in biases due to measurement error and quality effects. In a household survey experiment, information on prices was obtained in three ways: from unit values, from a market price survey, and from the opinions of householders who were shown pictures of items and asked to report the local price. The three sets of price data are used to calculate poverty lines, estimate price elasticities, and analyze marginal tax reforms. There are substantial biases when unit values are used as a proxy for market price, even when sophisticated correction methods are applied. Performance was better for the price opinions of household members. The results highlight the importance of price collection methods and the need to consider the wider costs of having potentially unreliable community-level price data. 2014-01-03T21:25:12Z 2014-01-03T21:25:12Z 2005-01 Journal Article http://documents.worldbank.org/curated/en/2005/01/17747626/prices-unit-values-poverty-measurement-tax-reform-analysis World Bank Economic Review doi:10.1093/wber/lhi002 http://hdl.handle.net/10986/16485 English en_US CC BY-NC-ND 3.0 IGO http://creativecommons.org/licenses/by-nc-nd/3.0/igo World Bank Published by Oxford University Press on behalf of the World Bank Publications & Research :: Journal Article Publications & Research :: Journal Article |
| 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 |
ADMINISTRATIVE COST AVERAGE PRICE AVERAGE PRICES BRAND BRAND NAME COMMODITIES COMMODITY CONSUMER DEMAND CONSUMER PRICE CONSUMPTION EXPENDITURE CONSUMPTION EXPENDITURES COST OF LIVING DATA ENTRY DEMAND ANALYSIS DEMAND FUNCTIONS DEMOGRAPHIC DEVALUATION DEVELOPING COUNTRIES DEVELOPING ECONOMIES DUMMY VARIABLES DURABLE DURABLE ASSETS DURABLES ECONOMIC CRISES ECONOMIC CRISIS ECONOMIC DEVELOPMENT EMAIL ADDRESS EXCHANGE RATES EXPENDITURE EXPENDITURES FINANCIAL CRISIS FINANCIAL SUPPORT FISCAL POLICY FIXED COST HOUSEHOLD INCOME INCOME INCOME TAX INDUSTRIAL COUNTRIES INFLATION INFLATION RATE INFLATION RATES INNOVATION INSTRUMENT INTERNATIONAL BANK INTERNATIONAL TRADE INVENTORY LIVING STANDARDS LOCAL MARKET MARKET LIBERALIZATION MARKET PRICE MARKET PRICES MARKET SURVEY MARKET SURVEYS MARKETPLACE MISSING DATA MISSING VALUES MONOPOLIES PHOTO PHOTOS POWER PARITY PRICE CHANGES PRICE DERIVATIVE PRICE ELASTICITY OF DEMAND PRICE INFORMATION PRICE POLICY PRICE SERIES PRICE VARIATION PRICE VARIATIONS PRICING POLICIES PRICING POLICY PRODUCE MARKET PRODUCE MARKETS PUBLIC POLICY PURCHASING PURCHASING POWER RELIABILITY RESULT RESULTS RURAL MARKETS SALES SECURITY POLICIES SOCIAL COST SOCIAL COSTS SPREAD SUBSTITUTE SUBSTITUTION SUPERMARKETS TAX TAX POLICIES TAX POLICY TAX RATE TAX RATES TRACK RECORD TRADE LIBERALIZATION USERS USES VALUATIONS WEB WEB SITE |
| spellingShingle |
ADMINISTRATIVE COST AVERAGE PRICE AVERAGE PRICES BRAND BRAND NAME COMMODITIES COMMODITY CONSUMER DEMAND CONSUMER PRICE CONSUMPTION EXPENDITURE CONSUMPTION EXPENDITURES COST OF LIVING DATA ENTRY DEMAND ANALYSIS DEMAND FUNCTIONS DEMOGRAPHIC DEVALUATION DEVELOPING COUNTRIES DEVELOPING ECONOMIES DUMMY VARIABLES DURABLE DURABLE ASSETS DURABLES ECONOMIC CRISES ECONOMIC CRISIS ECONOMIC DEVELOPMENT EMAIL ADDRESS EXCHANGE RATES EXPENDITURE EXPENDITURES FINANCIAL CRISIS FINANCIAL SUPPORT FISCAL POLICY FIXED COST HOUSEHOLD INCOME INCOME INCOME TAX INDUSTRIAL COUNTRIES INFLATION INFLATION RATE INFLATION RATES INNOVATION INSTRUMENT INTERNATIONAL BANK INTERNATIONAL TRADE INVENTORY LIVING STANDARDS LOCAL MARKET MARKET LIBERALIZATION MARKET PRICE MARKET PRICES MARKET SURVEY MARKET SURVEYS MARKETPLACE MISSING DATA MISSING VALUES MONOPOLIES PHOTO PHOTOS POWER PARITY PRICE CHANGES PRICE DERIVATIVE PRICE ELASTICITY OF DEMAND PRICE INFORMATION PRICE POLICY PRICE SERIES PRICE VARIATION PRICE VARIATIONS PRICING POLICIES PRICING POLICY PRODUCE MARKET PRODUCE MARKETS PUBLIC POLICY PURCHASING PURCHASING POWER RELIABILITY RESULT RESULTS RURAL MARKETS SALES SECURITY POLICIES SOCIAL COST SOCIAL COSTS SPREAD SUBSTITUTE SUBSTITUTION SUPERMARKETS TAX TAX POLICIES TAX POLICY TAX RATE TAX RATES TRACK RECORD TRADE LIBERALIZATION USERS USES VALUATIONS WEB WEB SITE Gibson, John Rozelle, Scott Prices and Unit Values in Poverty Measurement and Tax Reform Analysis |
| description |
Researchers often use unit values
(household expenditures on a commodity divided by the
quantity purchased) as proxies for market prices when
calculating poverty lines and estimating consumer demand
equations. Such proxies are often needed because community
price surveys in developing economies are either absent or
suffer quality problems. However, using unit values may
result in biases due to measurement error and quality
effects. In a household survey experiment, information on
prices was obtained in three ways: from unit values, from a
market price survey, and from the opinions of householders
who were shown pictures of items and asked to report the
local price. The three sets of price data are used to
calculate poverty lines, estimate price elasticities, and
analyze marginal tax reforms. There are substantial biases
when unit values are used as a proxy for market price, even
when sophisticated correction methods are applied.
Performance was better for the price opinions of household
members. The results highlight the importance of price
collection methods and the need to consider the wider costs
of having potentially unreliable community-level price data. |
| format |
Journal Article |
| author |
Gibson, John Rozelle, Scott |
| author_facet |
Gibson, John Rozelle, Scott |
| author_sort |
Gibson, John |
| title |
Prices and Unit Values in Poverty Measurement and Tax Reform Analysis |
| title_short |
Prices and Unit Values in Poverty Measurement and Tax Reform Analysis |
| title_full |
Prices and Unit Values in Poverty Measurement and Tax Reform Analysis |
| title_fullStr |
Prices and Unit Values in Poverty Measurement and Tax Reform Analysis |
| title_full_unstemmed |
Prices and Unit Values in Poverty Measurement and Tax Reform Analysis |
| title_sort |
prices and unit values in poverty measurement and tax reform analysis |
| publisher |
Published by Oxford University Press on behalf of the World Bank |
| publishDate |
2014 |
| url |
http://documents.worldbank.org/curated/en/2005/01/17747626/prices-unit-values-poverty-measurement-tax-reform-analysis http://hdl.handle.net/10986/16485 |
| _version_ |
1764433358690975744 |