Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys

This study found Philippine family demands for (1) electricity, (2) gas and liquid fuels, (3) solid fuels, (4) food, and (5) others—based on Family Income and Expenditure Surveys (FIES) in 2009, 2012, and 2015—are rational (i.e., expenditure minimizing). Specifically, all own-price elasticities are...

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Main Authors: Dumagan, Jesus C, Abrigo, Michael RM
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Published: Archīum Ateneo 2022
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Online Access:https://archium.ateneo.edu/asog-pubs/252
https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1252&context=asog-pubs
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spelling ph-ateneo-arc.asog-pubs-12522022-12-07T02:00:56Z Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys Dumagan, Jesus C Abrigo, Michael RM This study found Philippine family demands for (1) electricity, (2) gas and liquid fuels, (3) solid fuels, (4) food, and (5) others—based on Family Income and Expenditure Surveys (FIES) in 2009, 2012, and 2015—are rational (i.e., expenditure minimizing). Specifically, all own-price elasticities are negative (downward sloping demand curves). Cross-price elasticities between (1), (2), and (3) are positive (substitutes) while cross-price elasticities of (1), (2), and (3) with (4) or (5) are mostly negative (generally complements). Income elasticities are positive (normal goods), except for (3), comprising “fuelwood, charcoal, and biomass residues” that are consumed less at higher incomes (inferior goods). These elasticities yield a Hicks-Slutsky substitution matrix that is symmetric and negative semi-definite—the necessary and sufficient conditions for expenditure minimization—a finding unprecedented in a Philippine demand study. These results validate computing compensating variation (CV) and equivalent variation (EV) that are changes in compensated incomes for restoring welfare after prices change. During 2009-2015, the overall Consumer Price Index increased 3.08 percent annually to which energy price increases contributed 0.23 percentage points, about equal to mid-point CV and EV estimates of welfare losses ranging 0.18 to 0.30 percent of 2009 total expenditures. However, improved household energy end-use efficiency by “waste” reduction compensated the above welfare losses even without increasing total expenditures or investing in efficiency improvements. 2022-01-01T08:00:00Z text application/pdf https://archium.ateneo.edu/asog-pubs/252 https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1252&context=asog-pubs Ateneo School of Government Publications Archīum Ateneo Expenditure minimization energy demand end-use efficiency welfare change Economics Environmental Sciences Oil, Gas, and Energy Social and Behavioral Sciences
institution Ateneo De Manila University
building Ateneo De Manila University Library
continent Asia
country Philippines
Philippines
content_provider Ateneo De Manila University Library
collection archium.Ateneo Institutional Repository
topic Expenditure minimization
energy demand
end-use efficiency
welfare change
Economics
Environmental Sciences
Oil, Gas, and Energy
Social and Behavioral Sciences
spellingShingle Expenditure minimization
energy demand
end-use efficiency
welfare change
Economics
Environmental Sciences
Oil, Gas, and Energy
Social and Behavioral Sciences
Dumagan, Jesus C
Abrigo, Michael RM
Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys
description This study found Philippine family demands for (1) electricity, (2) gas and liquid fuels, (3) solid fuels, (4) food, and (5) others—based on Family Income and Expenditure Surveys (FIES) in 2009, 2012, and 2015—are rational (i.e., expenditure minimizing). Specifically, all own-price elasticities are negative (downward sloping demand curves). Cross-price elasticities between (1), (2), and (3) are positive (substitutes) while cross-price elasticities of (1), (2), and (3) with (4) or (5) are mostly negative (generally complements). Income elasticities are positive (normal goods), except for (3), comprising “fuelwood, charcoal, and biomass residues” that are consumed less at higher incomes (inferior goods). These elasticities yield a Hicks-Slutsky substitution matrix that is symmetric and negative semi-definite—the necessary and sufficient conditions for expenditure minimization—a finding unprecedented in a Philippine demand study. These results validate computing compensating variation (CV) and equivalent variation (EV) that are changes in compensated incomes for restoring welfare after prices change. During 2009-2015, the overall Consumer Price Index increased 3.08 percent annually to which energy price increases contributed 0.23 percentage points, about equal to mid-point CV and EV estimates of welfare losses ranging 0.18 to 0.30 percent of 2009 total expenditures. However, improved household energy end-use efficiency by “waste” reduction compensated the above welfare losses even without increasing total expenditures or investing in efficiency improvements.
format text
author Dumagan, Jesus C
Abrigo, Michael RM
author_facet Dumagan, Jesus C
Abrigo, Michael RM
author_sort Dumagan, Jesus C
title Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys
title_short Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys
title_full Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys
title_fullStr Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys
title_full_unstemmed Rational Choices and Welfare Changes in Philippine Family Energy Demand: Evidence from Family Income and Expenditure Surveys
title_sort rational choices and welfare changes in philippine family energy demand: evidence from family income and expenditure surveys
publisher Archīum Ateneo
publishDate 2022
url https://archium.ateneo.edu/asog-pubs/252
https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1252&context=asog-pubs
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