DETERMINANTSOFHOUSEHOLDWASTER ECYCLINGBEHAVIOR THECASEOFHOCHIMINHCITY BY PHAN BÙIKHUÊĐÀI MASTEROFARTSINDEVELOPMENTECONOMICS... Table1.Descriptionofthevariables...16 Table2.Prevalenceofre
Trang 1DETERMINANTSOFHOUSEHOLDWASTER
ECYCLINGBEHAVIOR THECASEOFHOCHIMINHCITY
BY
PHAN BÙIKHUÊĐÀI
MASTEROFARTSINDEVELOPMENTECONOMICS
Trang 2UNIVERSITYOFECONOMICS INSTITUTEOFSOCIAL
NETHERLANDSPROGRAMMEFOR
VIETNAM-M.AINDEVELOPMENTECONOMICS
DETERMINANTSOFHOUSEHOLDWASTER
ECYCLINGBEHAVIOR THECASEOFHOCHIMINHCITY
Athesissubmitted inpartialfulfilmentoftherequirementsforthedegreeofM A S T E R
Trang 3y D e v e l o p m e n t ( N A F O S T E D ) andlogisticregression.Myfindingsrevealthatpsychologicalfactorstowardsrecyclingg e n e r a l l y appeartobestatisticallyinsignificant.Nevertheless,c o n c e r n aboutwaste,awarenessof
inheritanceforfuturegenerationandsatisfactiono fw a s t e c o n d i t i o n a t h o u s e h o l d
’ s r e s i d e n c y e x p l a i n t h e i r r e c y c l i n g b e h a v i o r f o r somematerials.Anotherinterestingfindingisthatthehousehold’sbeliefofmoneyg a i n e d fromwasterecyclingwillleadtorecyclingpaper,cartonandplastic.F u r t h e r m o r e , t h e r e s u l t s d i
s c l o s e t h a t i n c o m e a n d a g e i n somec a s e s a f f e c t t h e recyclingb e h a v i o
r n e g a t i v e l y M o r e o v e r , h o u s i n g c h a r a c t e r i s t i c s h a v e i m p a c t onrecyclingbehaviorpositivelyinthecaseofmetal,cartonandpaperrecycling
Keywords:householdwasterecycling,recyclingbehavior,logisticmodel
Trang 4Firstly,IwouldliketoexpressmysinceregratitudetomysupervisorProf.NguyenT r o n g H o a i w h o p r o v i d e d mew i t h p r e c i o u s d a t a s e t f r o m
t h e survey“ C o n su m p t i o n behaviortowardsgreengrowthinurbanareaofVietNam”,fundedbyNationalFoundationforScienceandTechnology Development(NAFOSTED) a n d g a v e mev a l u a b l e g u i d e l i n e s , c o m m e n t s a n d s
u g g e s t i o n s f o r t h e s u c c e s s f u l completionofthisstudy
Iwo ul d l i k e t oe x p r es s myspeciala p p r e c ia t i o n t o Dr T r u o n g Da ng ThuywhomIh a v e l e a r n e d a l o t fromh i s e n t h u s i a s t i c guidance, usefulreco m men dat ions andinspiration.Besides,hisfriendlyandinspiringapproachhasg
I amalso thankful to all lecturers and program administrators oftheVietnam–
TheNetherlandsProgramforM.A.inDevelopmentEconomics.Theyhavegivenmewonderfulknowledgeandhelpedmekindlyduringthecourse
ToallmyfriendsinMDEClass16,19and20,especiallyMA.NguyenVanDu n g (Class16)andMA.NguyenQuangHuy(Class19)whogavemeemotionale n c o u r a
g e m e n t , Iwouldliketoexpressmysincerethanks
Finally,IwouldliketoexpressmydeeplyappreciationtomyfamilyandMr.T r a n KimMinhforspiritualsupportandlove.Inparticular,Idedicatethisthesistomybelovedfarther,Mr.PhanVanBay
HCMC,November2015PhanBuiKhueDai
Trang 5TABLEOFCONTENTS
LISTOFTABLES v
LISTOFFIGURES vi
Chapter1:INTRODUCTION 1
1.1 Problemstatement 1
1.1.1 Realworldproblem 1
1.1.2 Scientificproblem 1
1.2 Researchobjectives 2
1.3 Researchquestions 2
1.4 Researchscopeanddata 2
1.5 Thestructureofthisstudy 2
Chapter2:LITERATUREREVIEW 4
2.1 TheoreticalReview 4
2.2 EmpiricalReview 5
2.2.1 Socio-EconomicandDemographiccharacteristics 5
2.2.2 Housingcharacteristics 9
2.2.3 Psychologicalfactorstowardsrecycling 10
Chapter3:RESEARCHMETHODOLOGY 15
3.1 Conceptualframeworkandtheeconometricmodel 15
3.2 Datasource 20
3.3 Methodology 20
Chapter4:EMPIRICALRESULTS 22
4.1 DescriptiveStatistics 22
4.1.1 Dependentvariables 22
4.1.2 Independentvariables 22
4.2 Bivariateanalysis 24
4.2.1 Metalrecycling 24
4.2.2 Cartonrecycling 27
4.2.3 Paperrecycling 29
4.2.4 Plasticrecycling 32
4.2.5 Glassrecycling 34
Trang 64.2.6 Clothrecycling 36
4.3 Regressionresults 38
Chapter5:C O N C L U S I O N AND POLICYRECOMMENDATION 43
5.1 Conclusion 43
5.2 Policyrecommendation 44
5.3 Researchlimitation 44
REFERENCES 45
APPENDICE 48
Trang 7Table1.Descriptionofthevariables 16
Table2.Prevalenceofrecyclingtowardsixmaterials 22
Table3.Descriptivestatisticsofnumericalvariables 23
Table4.Descriptivestatisticsofbinaryvariables 24
Table5.Acomparisonbetweenmetalrecyclingandnon-recyclingintermof income,ageandsizeofhousing 24
Table6.Acomparisonbetweenmetalrecyclingandnon-recyclingintermof gender,typeofhousingandeducation 25
Table7.Acomparisonbetweencartonrecyclingandnon-recyclingintermof income,ageandsizeofhousing 27
Table8.Acomparisonbetweencartonrecyclingandnon-recyclingintermof gender,typeofhousingandeducation 27
Table9.Acomparisonbetweenpaperrecyclingandnon-recyclingintermof income,ageandsizeofhousing 29
Table10.Acomparisonbetweenpaperrecyclingandnon-recyclingintermof gender,typeofhousingandeducation 30
Table11.Acomparisonbetweenplasticrecyclingandnon-recyclingintermofincome,ageandsizeofhousing 32
Table12.Acomparisonbetweenplasticrecyclingandnon-recyclingintermof gender,typeofhousingandeducation 32
Table13.Acomparisonbetweenglassrecyclingandnon-recyclingintermof income,ageandsizeofhousing 34
Table14.Acomparisonbetweenglassrecyclingandnon-recyclingintermof gender,typeofhousingandeducation 34
Table15.Acomparisonbetweenclothrecyclingandnon-recyclingintermof income,ageandsizeofhousing 36
Table16.Acomparisonbetweenclothrecyclingandnon-recyclingintermof gender,typeofhousingandeducation 36
Table17.Parameterestimatesforthelogitmodels 39
Trang 8Figure1.Conceptualframework 15Figure2.Acomparisonbetweenmetalrecyclingandnon-
recyclingintermofsomeselectedpsychologicalfactors 26Figure3.Acomparisonbetweencartonrecyclingandnon-recyclingintermof
someselectedpsychological factors 28Figure4.Acomparisonbetweenpaperrecyclingandnon-
recyclingintermofsomeselectedpsychologicalfactors 31Figure5.Acomparisonbetweenplasticrecyclingandnon-recyclingintermof
someselectedpsychologicalfactors 33Figure6.Acomparisonbetweenglassrecyclingandnon-
recyclingintermofsomeselectedpsychologicalfactors 35Figure7.Acomparisonbetweenclothrecyclingandnon-
recyclingintermofsomeselectedpsychologicalfactors 37
Trang 9Chapter1:INTRODUCTION1.1 Problemstatement
m e n t a l p o l l u t i o n a n d t h e s e r i o u s l y i m p a c t o n p u b l i c h e a l t h I n t h e g e
n e r a l context,HoChiMinhCityis
facingmanychallengesinwastemanagement.E v e r y day,thecityhasmorethan7,000tonsofgarbageandcostseachyearupto235billionVNDtohandle.Thus,inordertorecommendgovernmentinthedesigno f e f f e c t i v e p o l i c i e s tominimizew a s t e , i t isnecessarytou n d e r s t a n d h o u s e h o l d w a s t e recyclingbehavior.ThestudyanalyzesthedeterminantsofhouseholdwasterecyclebehaviorwiththescopeofresearchinHoChiMinhCity
1.1.2 Scientificproblem
Currently,t h e r e a r e f e w s t u d i e s o n t h e i s s u e o f h o u s e h o l d b e h a v i o r i n V i
e t n a m , m a i n l y towardsgreenconsumption(wateruse;energyuse;recyclingandtransportc h o i c e ) O f w h i c h , t h e r e i s onlyone s t u d y ofL u u B a o D o a n a n d NguyenT r o n g H oa i ( 2 0 1 5 ) o n h o u s e h o l d w a s t e r e c y c l i n g
b e h a v i o r Using
structurale q u a t i o n modeling,thisstudyindicatedthatrecyclingrelatedtotheattitudeofthehouseholdtowardsrecycling.Further,generalconcernandknowledgeofenvironmentdonoth a v e directrelationswiththebehaviorofinteresttorecycle
Therefore,thestudywithlogitmodelsmaycontributetoacademicknowledge onrecyclingb e h a v i o r int h e c o n t e x t o f a
d e v e l o p i n g countryl i k e Vietnam.F u r t h e r m o r e , thisstudycanprovidepolicymakerswithanewperspective onthen a t u r e ofrecyclingbehavior,therelationshipbetweenthisbehaviorandsuchfactorsa s p s y c h o l o g i c a l f a c t o r s o f t h e
Trang 10environmenting e n e r a l a n d w a s t e recyclingi n p a r t i c u l a r , s o t h a t t h e a u t
h o r i t y c a n c o n s i d e r a p p r o p r i a t e t o o l s t o a d j u s t c i t i z e n ' s behaviortowardsrecyclingmore
Trang 111.2 Researchobjectives
Theobjectiveofthestudyistoidentifyfactorsaffectinghousehold’swasterecyclingb e h a v i o r inH o C h i M i n h Cityt o w a r d s s i x d i f f e r e n t materials:metal,c a
Trang 12aresocio-n d p s y c h o l o g i c a l f a c t o r s towardsr e c y c l i aresocio-n g F u r t h e r m o r e , t h e s e f a c t o
r s impactp o s i t i v e l y o r n e g a t i v e l y o n recyclingbehaviordependingonthecircumstancesandthematerialaswell
Trang 13Thischapterprovideswiththeoreticalandempirical reviewsrelatedtohouseholdw a st e recyclingbehavior.Thefirstsectionwillreviewrandomutilitytheory.Thee m p i r i c a l researchesindicatethattherearethreemaingroupsoffactorsthataffectindividual’sbehaviorofrecycling.Theyaresocio-
economicanddemographicc h a r a c t e r i s t i c s , housingcharacteristicsandpsychologicalfactorstowardsrecycling.F u r t h e r m o r e , t h e s e f a c t o r s i m p a c t p o s i t i v e
l y o r n e g a t i v e l y onr e c y c l i n g b e h a v i o r d e p e n d i n g onthecircumstancesandthematerialaswell
2.1 TheoreticalReview
ArelatedtheoryexplainingrecyclingbehaviorisRandomUtilityTheorybyMarschak(1960).Thistheoryindicatedthatanindividualutilitycouldbedefinedbyt w
Similarly,thetotalutilityofahouseholdiwithnon–recycling:
U0i=V0i+e0i
Where,V1icanbeapproximatedbyalinearfunctionofrecyclinginthevectorofXiand thepopulationutilityweightsforeachattributeinthevectori:V0i=0iX0i.Inadditional,e0iisrandomutilitycomponent
Theprobabilitythatahouseholdrecyclescanbeexpressedastheprobability thattheutilityassociatedwithrecyclingishigherthantheutilityofnon–recycling:
Pr(recycling)=Pr(U1i>U0i)OrPr(recycling)=Pr(V1i+e1i>V0i+e0i)=Pr(e1i-e0i>V0i-
V1i)O rPr(recycling)=Pr(e1i-e0i> 0iX0i-1iX1i)
Trang 14Weassumethaterrortermsofalternativesdonotcorrelatewitheachotherandtheyh a v e thesamevarianceandfollowlogisticdistribution.Inthiscasetheprobabilitythatahouseholdchoosestorecycleisalogitprobability:
e1i X1i Pr(recycling)
e0i X 0i
2.2 EmpiricalReview
Environmentald e g r a d a t i o n c o u l d d e s t r o y o u r n a t u r a l h a b i t a t a n d recyclingu s e d materialsisarguedtobeabettersolutiontomaketheenvironmentcleaner,
c o n s e r v e materials,saveenergyandreducegarbageinlandfills(Fiorillo,2013)
Ag r e a t d e a l o f r e s e a r c h a n d e m p i r i c a l s t u d i e s h a v e b e e n c a r r i
e d o u t i n o r d e r t o investigatethenecessityandimportantroleofrecyclingtowardourlifethroughthef o l l o w i n g dependent
Trang 15yclingbehaviorofbothhouseholdandindividual.Manys t u d i e s haveshowna s i g n i f
i c a n t p o s i t i v e r e l a t i o n s h i p b e t w e e n h i g h er householdincomeandrecyclingbehavior(Halvorsen,2008; Leeetal.,2011;
Trang 16FerraraandMissios,2012;Fiorillo,2013;Halvorsen,2012;HuiZhaoetal.,2013).Halvorsen( 2 0 0 8 a n d 2 0 1 2 ) s u r v e y e d 1 1 6 2 a n d 1 0 2 5 1 h o u s e h o l d s r
e s p e c t i v e l y f r o m
N o r w a y and10variousOEDCcountriesin2008andindicatedthatthehigherincomerespondentshave,themorelikelytheyaretorecyclehouseholdwaste.In2011,L e
e e t a l s h o w e d t h a t h i g h e r i n c o m e c r e a t e s a h i g h e r i n c e n t i v e f o r h ou seho ldst o p a r t i c i p a t e i n b o t h f o o d s e p a r a t i o n a n d r e c y c l i n g t h r o u g h a s u r v e yincluding196r e s p o n s e s c o n d u c t e d i n S e o u l , K o r e a F e r r a r a a n d Missios( 2 0 1 2 ) u s e d thesampleof10.251respondentsfrom10OEDCcountriestoconcludethatveryricherhouseholdsorindividualsaremorelikelytotakepartinglassrecyclinga s wellasrecycleatalargerratioofglass,plasticandaluminum.One yearlater,F i or l lo (2013) c o n d u c t e d a n empirical studyof4 7 6 4 3 ho use ho lds
an d f ou nd outthatp e o p l e w i t h h i g h incomet e n d t o r e c y c l e a l l materialsi n c l u
d e d p a p e r , g l a s s , p l a s t i c andaluminumexceptingforfoodwaste.Inthemeanwhile,HuiZhaoetal
( 2 0 1 3 ) researcheda dat a of50 0questionnairescollectedin Qingdaot o provethe p o s i t i v e correlationbetweenhigherincomeandrecyclingbehavior.Moreover,analyzinga dataof402 householdsin DhakaCity,theys u m m a r i z e d
t h a t thef r e q u e n c y ofsolidwasterecyclingbehaviorisinfluencedpositivelybythemiddleo f incomegroup.Theseresultsimpliedthathouseholdsonlowandmiddleincometendtotakeadvantageofallmaterialstominimizethecostofbuyingnewthings.Severalo t h e r r e s e a r c h e r s h a v e s u g g e s t e d a n e g a t i v e o r i n s i g n i f i
c a n t c o r r e l a t i o n betweenincomeandhouseholdwasterecyclingbehavior(Hageetal.,2008;Shaufiqueetal.,2010).Usingasampleof2800householdmembersin4differentSwedishmunicipalitiesin2006,Hageetal
(2009)evaluatedthatincomeisnotadeterminantofhouseholdrecyclingbehaviorofpackagingwaste which issimilartot h e f i n d i n g o f N i x o n e t a l ( 2 0 0 9 ) t h a t e x a m i n e d h o u s e h o l d s ’ a t t i t u d e s t o w a r d s recycling.Ontheotherhand,Rafiaetal
(2011)didnotseethecorrelationbetweenincomeandrecyclingbehaviorinthedirectma
Trang 17(2010)demonstratedthatincomehasanegativeimpactonr e s i d e n t i a l recyclingrateperannum.Basedonadatasetof774respondentsrepresenting 86countiesinMinnesota,thestudyofShaufiqueetal
(2010)calculated thatifannualincomepercapitaincrease1000dollarthentherewillbea
Trang 18o r e s eta l ( 2 0 1 1 ) c o n c e r n e d t h a t
womenareeasiertoengageinewasterecyclingandbewillingtorecycleewasteatd r o p
-o f f c e n t e r t h a n mena f t e r t e s t i n g a d a t a -o f 2 1 3 6 h -o u s e h -o l d s f r -o m a
2 0 0 6 n a t i o n a l surveyofUS.Noticeably,FerraraandMissios(2012)andFiorillo(2013)p r o v e d thesignificantpositivesignbetweengenderandhouseholdrecyclingb eh av io r o f f i v e followingmaterials:g l a s s , p l a s t i c , p a p e r , f o o d a
n d aluminumw a s t e H o w e v e r , w h i l s t F e r r a r a a n d M i s s i o s s u g g e s
t e d t h a t mena r e w i l l i n g t o recycleand recyclemorealuminumthanwomen,Fiorillofoundoutthatwomenarer e a d y torecyclea l l m a t e r i a l s t ha nm e n T
h e s e f i n d i n g s im pl ie d t h a t t he g e n d e r ’ s i m p a c t onrecyclingtrendmaybedependentonkindofwastematerialsaswellass u r v e y area
u f f m a n etal.,2 0 1 4 )
Trang 20V.Joshi,Lupi,2010;DwivedyandMittal,2013;Pakpouretal.,2013;Langeetal.,2 0
1 4 ) A n d o ( 2 0 0 5 ) u s e d t h e p r o b i t a n d d o u b l e
-c e n s o r e d tobitm o d e l t o ex a m i n e re-cy-clingratesof214multifamilydwellingsinUrbana,Illinoisbeforeconcludingt h a t numbero f yearso f e d u c a t i o n p r e s
e n t a p o s i t i v e c o r r e l a t i o n w i t h c o n t a i n e r recyclingrate.Significantly,Andersonetal
(2013)appliedthelogisticregressionmodelinordertoanalyzeasamplefromthe2003-
2006andsuggestededucationlevelo f h o u s e h o l d h e a d playsa c r u c i a l r o l e
i n makingt h e d e c i s i o n t o recycle.Educationalsoshowedanegativeimpactonrecyclingbehaviorformonetaryr e a s o n s
Ontheotherhand,SternerandBartelings(1999)foundanegativecorrelationofagewit h household’swillingnesstopayforcaringforrecyclingissues
whichimplythatp e o p l e w it h lesseducation arew i l l i n g topaymore.S i m i l a r l y ,
H a g e e tal
(2009)s h o w e d thateducationhasanegativeinfluenceonpaperrecycling.However,somee m p i r i c a l s t u d i e s i n v e s t i g a t e d t h a t t h e r e i s n o i m p a c t s o f e d u c a t
l , 20 14) AsforHageetal
(2009),agewasdeemedtobeapositivedeterminantfora l l packagingmaterialsrecycledbyindividualsandhouseholds.Inthesamepattern,Ayalon,S h a r o n a n d S h e c h t e r (
2 0 1 3 ) , t h r o u g h a s u r v e y o f 1 2 0 0 0 h o u s e h o l d s i n 2 0 1 1 , provedageinfluencepositivelyonhouseholdseparationandrecyclingb eh av i o r exceptforfoodandgarden.WhilstLeeetal
(2011)presentedtheimportanceofindividualsbeingolderintheKoreanhouseholdre
Trang 21(2011)mentionedolderwomenareeasiertointendtorecycle.Afrozeta l
(2011)andFiorillo(2013)alsofoundthatrespondentfrom25to35orfrom51to 60yearsoldwilltendtoengageinrecyclingactivitiesforallmaterials
However,afewrecentstudiesshowednegativerelationshipbetweenageandh o u s e h o l
d wasterecycling.AccordingtoFerraraandMissios(2012),theyounger
Trang 222.2.2 HousingcharacteristicsHo
usetype
Ther e l a t i o n s h i p b e t w e e n hometypew i t h t h e i n t e n t i o n o f h o u s e h
o l d r e c y c l i n g b e h a v i o r hasbeenexamined.AndoandGosselin(2005)indicatedthatmultifamilyd w e l l i n g s livingin theapartmenthavingadequatestoragespacewillachievehigherrecyclingrate.Accordingto Barr(2007),hometypewasdeemedtobepositivelyi m p a c t onrecyclingintentionthroughapplyingthestandardizedregressionmodeltoanalyzeadataof673respondentsofExeter.DalenandHalvorsen(2011)realizedt h at womenl i v i n g i n d e t a c h e d h o u s e w i l l b e morel
i k e l y torecycle.I n 2 0 1 2 , Halvorsen alsof o u n d
t h e s i m i l a r i m p a c t ofdetachedh o u s e o n
t h e numbero f materialsrecycled.Inanotherrecentstudy,DwivedyandMittal(2013)illustratedt h a t among1 5 0 res po nde nt s f r o m India whol i v i n g in an a p
a r t m e n t wi ll be m or e willingtotakepartine-wasterecycling
Incontrast, usingorderedprobitanalysis, Ha g e etal
(2009)proposedthat householdl i v i n g i n anapartmentt e n d t o r e c y c l e l e
s s metalw a s t e t h a n o t h e r s Moreover,FerraraandMissios(2012)indicatedthathouseholdlivinginadetachedo r s e m i -
d e t a c h e d i s l e s s p r o b a b l e t o r e c y c l e T h e r e a r e a f e w ofthestudiesnotshowinganyrelationshipb e t w e e n t w o ab o v e v a r i a b l e s ( N i x o n e t a l , 2 0 0 9 ; B y r n e
a n d O’regan,2014)
Housesize
Thec o r r e l a t i o n b e t w e e n h o u s e s i z e a n d recyclingb e h a v i o r i s investigatedd i f f e r e n t l y amongstudies.Throughasurveyof1507householdsintheUS,
Trang 231 0
Trang 24outthatsizeofresidencewillimpactpositivelyonhouseholdrecyclingandwastep r e v e n t i o n Themoreroomshouseholdowns,themoreprobableitistoengageinrecyclingallmaterialsexceptforplasticandaluminumwaste.Afterwards,Fiorillo( 2 0 1 3 ) suggestedthatpeoplelivinginahousehavingfrom1to5roomspromotethelikelihood of r e c y c l i n g al lm a t e r i a ls e x ce p t fo rf oo d waste Ho weve
r, anothere m p i r i c a l i n v e s t i g a t i o n d i d n o t p r o p o s e anyr e l a t i o n s h i p b
e t w e e n h o m e s i z e a n d recyclingbehavior(Afrozetal.,2011)
2.2.3 Psychologicalfactorstowardsrecycling
Withreferencetoempiricalinvestigations,thereisagreatdealofstudiesdepictingt h eeffectofpsychologicalfactorstowardsrecyclingbehavior.ThefirstandforemostonewouldbeSternerandBartelings(1999)suggestingthatpeopleshowingtheirconcerntowardtheimportanceofwasteareeasiertopayfortakingc a r e o f h o u s e h o l d w
a s t e , w h e r e a s , r e s p o n d e n t s r e p o r t i n g d i f f i c u l t y o f recyclingd i f f
e r e n t materialsarelesslikelytopayattentiontorecyclingproblemtogetherwithrecyclingbehavior
RegardingBruvolletal
(2002),itwasclearthatthereisanintensepositiverelationship b e t w e e n sortingbehaviorandhouseholds’attitudestowardsorting.Afterexaminingpsychologicalfactorsof1162intervieweesin1999,namely:Perceivingsortingasmandatory,environmentalconsiderationsandmoralr e q u i r e m e n t s , theauthorspointedoutthatindividualsconcerningmoreaboutn a t u r a l h a b i t a t s a s t h e i r o w n a n d c i v i c r e s p o
n s i b i l i t y w i l l d e f i n i t e l y c o n t r i b u t e toclassifyingbehavior
Inr e f e r e n c e t o B a r r ( 2 0 0 7 ) , t h e m o s t s t r i k i n g f i n d i n g w a s t h a t i n d i
v i d u a l s w h o c o n s i d e r e d recyclingtobethenormofthesocietyaremoreprobabletorecyclethano t h e r s Itwasalsoassumedthatrecyclingwillingnessandintensityareabletobestimulatedbyprovidinghouseholdsconvenientrecyclingfacilities.Forinstance,ifr e s p o n d e n t s p e r c e i v e t h e p r e s e n c e o f d r o p - o f f
l o c a t i o n s o r f e e l easyt o a c c e s s cu rb sid e r e c y c l i n g s e r v i c e s , i t i s c e r
t a i n t h a t residentialr e c y c l i n g r a t e p e r a n n u m willincreasesubstantially(Shaufiqueetal.,2010,X.Gellyncketal.,2011)F u r t h e r m o r e , t h e h a b i t o f recycl
Trang 25ingo r g a n i c w a s t e e n c o u r a g e d m u n i c i p a l i t i e s t o minimizetheirdomesticwaste
Trang 26In2008,Halvorsenappliedordinaryleastsquareestimation(OLS)toevaluatethenumberoffractionsrecycledbyt h e householdandpointedoutthatbeliefofrecyclingisthestrongestfactor.I n anotherlaterstudy,HalvorsenandDalen(2011)u s e d
ofmaterialsrecycledbyt h e h o u s e h o l d T h i s s t u d y d e s c r i b e d t h a t w o m
e n ’ s r e c y c l i n g e f f o r t s a r e m o r e encouraged bytheirconcernaboutwastegeneration,whilstmenres po nd moretot h e b e l i e f s o f b e t t e r e n v i r o n
m e n t F u r t h e r m o r e , H a l v o r s e n ( 2 0 1 2 ) i l l u s t r a t e d t h a t p eo ple inanenvironmentalorganizationswilltendmarkedlytorecyclemorethano t h e r s Inaddition,respondent concerned about waste generation, wa te rpollution andbelievingofrecyclingastheircivicdutyismoreprobabletorecycle.However,i n 2 0 1
2 , H a l v o r s e n a l s o indicatedthatp e o p l e w h o h a v e c o n c e r n a b o u t climaticch angew il l c o n ce n t r a t e t h e i r e f f o r t s o n ot he rg r e e n -
f r i e n d l y activitiesr a t h e r t h a n recycling
AccordingtoNixonetal.(2009),
respondentswillrecyclemoreifitisbelievedthatrecyclingbehavioristhedeterminantofreducingtheuseoflandfillssignificantlya n d conservingnaturalresourceseffectively.Moreover,households’recyclingp a r t i c i p a t i o n w a s a l s o proven
t o a r i s e f r o m e n v i r o n m e n t a l b e n e f i t s r a t h e r t h a n economicbenefits.Noticeably,thisstudydemonstratedthatpeopleconcurringwithh o w internalvaluesandmoralsaffecting pro-
environmental behaviororfeeling amoralobligationtorecyclearewillingtorecycleandrecyclemoreby7.2timesthant h o s e dissentingwiththeabovestatement
schoolaremorelikelytorecycleby7.3and5.0timesrespectively.Also,theyimplied
Trang 27thatthemoreinformationr e s o u r c e s h o u s e h o l d s r e c e i v e , t h e morel i k e l y theya r e t o e n g a g e inrecyclingbehavior
In2009,Hageetal.showedahighlypositivecorrelationbetweenmoralobligationandrecyclingbehaviorwhichmeansthathouseholdswhoareawareoftheirp e r s o n a l r
e s p o n s i b i l i t y w i l l d o recyclea l l m a t e r i a l s , p a r t i c u l a r l y p a p e r, g l a s s a n dmetal.Itisassumedthattheperceptionofothers’recyclingeffort,concernaboutthe
Trang 28Afterwards,A f r o z e t a l
( 2 0 1 1 ) s h o w e d a p o s i t i v e a n d c o r r e l a t i o n b e t w e e n t h e h o u seh o l
d ’ s attitudeandrecyclingbehavior.Specifically,environmentalawareness,w i l l i n g n e s stoseparateandminimizethehouseholdwasteandrespondent’sbeliefto ward solidwastemanagementpracticesarethedeterminantsencouragingthemtop r o d u c e lesswasteandrecyclemore
Besidest h a t , B a o ( 2 0 1 1 ) analyzeda s a m p l e o f 1 5 2 3 s t u d e n t s i n T u r k u t h
r o u g h P e a r s o n
chi-squarestatisticandsuggestedpositive,relevantimplicationofrecyclinga n d psychologicalfactors,namely:respondentsreportedhigherconcernaboutsustainabledevelopmentandbelievingRecyclingassiststoconservethee n v i r o n m e n t w i l l s h o w h i g h e r d e
g r e e s o f d e s i r e t o w a r d r e c y c l i n g A d d i t i o n a l l y , individualsacceptingmoralnormsaswell asconsideringrecyclingastheirr e s p o n s i b i l i t y aremorewillingtotakepartinrecycling.Finally,recyclingbehaviori s abletobestimulatedbygivingindividualsmoreinformationonwasteseparation,makingrec yc li ng morec o n v e n i e n t a n
d g u i d i n g t h e m the d e s t i na t i o n o f s e p a r a t e d w a s t e
Trang 29In2011,thereportofOECDaboutgreenhouseholdbehaviorshowedavailabilityofco nv en i
en t recyclingserviceandthecharacteristicsofrecyclingcollectionservicesalsoimpactpositivelyonrecyclingbehavior.Curbsiderecyclingfacilityanddrop-
Trang 30offsystemincreasealuminumrecyclingrateby34percent.Thisscientific sourcea l s o proposedthatrecyclingintentionandparticipationforglass,plasticandaluminumarepromotedmarkedlybyindividuals’environmentalattitudes.Recyclingprogramsarealsocitedaspositivefactorsimpactingonthelikelihoodofh o u s e h o l d recyclingdecision,particularlyaluminumwaste.
Oneyearlater,Saphoresetal.pointedoutmoralbeliefsareconsideredasthemoststatisticallysignificantvariablestowardrecyclingbehaviorfollowedbye-
wasterecyclingconvenienceandmandatoryrecyclingatworkorschoolrespectively.Ino t h e r words,householdsperceivingtheirresponsibilityasvoluntaryormandatorya n d being awareof easeofrecyclingwilltendtorecyclee-wastemoreconsiderablyt h a n ot he rs F u r t h e r m o r e , recyclingpar ti ci pa ti on can
be e n c o u r a ge d byprovidingh o u s e h o l d s knowledgeaboutthepotentialofdangerofe-waste
Inaddition,FerraraandMissios(2012)foundevidencesprovingthat respondentsrep o r ted higherconcernaboutenvironmentalproblemsareathigherlevelsofparticipationo f g l a s s , p l a s t i c , a l u m i n u m a n d f o o d w a s t e recycling.B e s i
d e s , theindividuals’environmentalattitudevariablesareassumedtobet h e determinantspromotingglass,
plasticandaluminumwasterecycling.Whetherandwhatextenttow h i c h recyclingisconsideredtobebeneficialfortheenvironmentneedtakingintoa c c o u n t aspositivefactorstowardrecyclingbehavior
In2 0 1 3 , F i o r i l l o i n d i c a t e d t h a t r e s p o n d e n t s s t a t i n g n o d i r t i n e s s p
r o b l e m s a t t h e residence will increase the probabilityofrecycling
waste.Ifahouseholdclaimsthatthereisnopollutionaroundareatheylive,his/herlikelihoodofrecyclingislowerthanothers,especiallyforpaper,plasticanda l u m i n u
m waste.Conversely,ifanindividualperceivesthehabitatbeingcleandaybyday,h e /
s h e t h e n t r i e s t o k e e p a n d e n c o u r a g e r e c y c l i n g b e h a v i o r c o n t i n u a l
l y Moreover,Pakpouretal
(2013)useddatafrom1782householdsof8urbanhealthcentersi n t h e Q a z v i n c i t
Trang 31ehavioralcontrol,moralobligationandself-cognitiont o w a r d s w a s t e r e c y c l i n g b e h a v i o r A c c o r d i n g t o t h a t, h o u s e h o l d s w h o r e p o r t e d h i g h er concerntotheseabovevariableswillstimulaterecyclingconsiderably
Trang 32(2013)analyzedthesurveyofOECDandsuggestedthathouseholdsreportedh i g
h e r c o n c e r n a b o u t e n v i r o n m e n t a l i s s u e s a r e l e s s l i k e l y t o r e f u
s e t o p a r t i c i p a t e i n w a s t e recycling.T h i s s t u d y s t r e s s e d t h e p o s i t i v eimpactso f e n v i r o n m e n t a l m o t i v a t i o n s t o w a r d r e c y c l i n g i n a l l c o u n t r
i e s surveyede x c e p t f o r I s r a e l citizen.Obviously,beingawareoftherecyclingserviceavailablelikedrop-o f f centerwillencourageindividualstorecyclemore
Moreover,Andersonetal
(2013)investigatedthedecisiontorecycleamongurbanSouthAfricansanddemonstratedthathouseholdswhoseelitteringasacommunityissuearemorewillingtorecyclethanothersdonot.Thetwo
mainfactors,includingg r e a t e r a w a r e n e s s o f e n v i r o n m e n t a l c o n c e r n a n d g r
e a t e r a c c e s s t o r e c y c l i n g faci liti es playa n i m p o r t a n t r o l e i n m i t i g a t i n
g h o u s e h o l d w a s t e a n d r i s i n g w a s t e recyclingrate.HuiZhaoetal
(2013)alsostatedthatenvironmentalconcernhadap o s i t i v e effectonrecyclingbehavior
In2014,ByrneandO’reganhaveconstructedstatementstoevaluatethereasonwhyo r whyn
o t r e c y c l i n g w a s c o n s i d e r e d a s a dailyr o u t i n e S t a t i s t i c s s h o w e
d t h a t almostrespondentshadpositiverecyclinghabitsandindividual’srecyclingeffortsw o u l d c r e a t e a s i g n i f i c a n t i n c e n t i v e f o r
householdssuggestedthattheywilltendtorecycleifreceivedmoreinformationandknowledgea b o u t r e c y c l i n g f a c i l i t i e s s u p p l i e d byw a s t e collectors
Trang 33Socio-Economic and Demographic Characteristics
Age
Gender
Education
Household Income
Psychological factors towards Recycling
Concern about waste Household’s awareness of impacts on environment Willingness to protect the environment
Household’s satisfaction of waste condition at residency Belief of economic benefits of recycling
Household waste recycling behavior
Housing characteristics
House type House size
Trang 34= 0 otherwise
Dummyv a r i a b l e , = 1 i f h o u s e h o l d recyclesc o n t a i n e r s a n d u t e n s i l s m a d e
Trang 35r l y co n ce r n e d ” ; = 1 i f t h e r e s p o n d e
n t ’ s degreeofconcernoverwastemanagement“Concerned”or“VeryConcerned”
Dummyvar ia bl e, = 0 i f t h e r e s p o n d e n t
’ s awareness d e g r e e o f environmentalimpactsonhumanl i f e “ N o i d e a ” o r “Disag r ee ” o r “ F a i r l y A g r e e ” ; = 1 i f t h erespondent’sa w a r e n e s s d e g r e e o fenvironmentalimpactsonhumanlife“Agree”or“StronglyAgree”
10 longevity Dummyvariable, = 0 i f t h e r e s p o n d e n t
’ s awareness degree of
environmental
Trang 36impactsonl o n g e v i t y “ N o i d e a ” o r “ Disag r ee ” o r “ F a i r l y A g r e e ” ; = 1 i f t h erespondent’sa w a r e n e s s d e g r e e o fenvironmentali m p a c t s o n longevity“A
o r “Disagree”o r “ F a i r l y A g r e e ” ; = 1
i f t h e respondent’swillingnessdegreetosaveenergytoprotecttheenvironment“Agree”or“StronglyAgree”
13 water
Dummyvar ia bl e, = 0 i f t h e r e s p o n d e n t
’ s willingness degree tosavewatertoprotecttheenvironment“Noidea”or“Disagree”or“FairlyAgree”;=1iftherespondent’swillingnessdegree
tosavewatertoprotectthee n v i r onment“ A g r e e ” o r “
S t r o n g l y Ag r e e”
14 waste
Dummyvar ia bl e, = 0 i f t h e r e s p o n d e n t
’ s willingness degreetotreatwastetoprotecttheenvironment“Noidea”or“Disagree”or“FairlyAgree”;=1iftheresponde
Trang 37h e environment“Agree”or“StronglyAgree”.
Dummyvar ia bl e, = 0 i f t h e r e s p o n d e n t
’ s awareness d e g r e e o f e c o n o m i c
b e n e f i t s fromrecycling“Noidea”or“Disagree”or“F airly A g r e e ” ; = 1iftherespondent’sawarenessd e g r e e o f e c
o n o m i c b e n e f i t s fromrecycling“Agree”or“StronglyAgree”
Withthevariablesandmeasurementsabove,theproposedfunctionalformis:
ln(P i
)=α+iSEDCi+iHCi+PFTRi+ui
1P i
Trang 38Inp a r t i c u l a r , Piisp r o b a b i l i t y o f r e c y c l i n g ; S E D C i s t h e v e c t o r o f
e x p l a n a t o r y v a r i a b l e s i n d i c a t i n g S o c i o
-E c o n o m i c a n d D e m o g r a p h i c C h a r a c t e r i s t i c s i n c l u d i n g A g e , Gender,Education,HouseholdIncome;HCisvectorofexplanatoryvariablesindicatingHousingcharacteristicsincludingHousesizeandHousetype;PFTR ist h e vectorofexplanatoryvariablesreferringtoPsychologicalfactorstowardsRecyclingi n c l u d i n g h
o u s e h o l d ’ s c o n c e r n a b o u t w a s t e ; a w a r e n e s s o f impactso n e n v i r o n m
e n t ; willingnesstoprotectenvironment;satisfactionofwasteconditionatresidency;beliefofmoneygainedfromwasterecycling
3.2 Datasource
Datausedinthisstudyisobtainedfromthesurvey“consumptionbehaviortowardsgreen
g r o w t h i n u r b a n a r e a o f V i e t N a m ” , f u n d e d byN a t i o n a l F o u n d a t
i o n f o r S ci e n c e andTechnologyDevelopment(NAFOSTED).ThesurveywasconductedinH o ChiMinhCityonAprilandMay2014,including200householdsfromDistrict1,3,4,9,BinhThanh,GoVap,PhuNhuanandThuDuc.Tocollectdata,investigatorsdirectlycontactedthehouseholdforaninterview,clearlyexplainedtheq u e s t i o n s andchoices,thenrecordedtherespondents'feedback
3.3 Methodology
Iamconcerningaboutwhatfactorsaffectingbehaviorofahouseholdtorecycleorn o trecyclet o w a r d s i x d i f f e r e n t materials.H e n c e , d e p e n d e n t v a r i a b l e i s a binaryoutcome.T w o s t a n d a r d modelsa re o f t e n us ed a re t h e p r o b i t m o d e l a n d t h e l o
Trang 391 22i kki
Where,Fisthecumulative distributionf u n c t i o n o f uiandwea s s u m e
t h a t t h e p r o b a b i l i t y densityfunctionofuiissymmetric
Trang 40
e u i
.TheprobabilityofrecyclingP(yi=1):
i 1e u i