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Essays on the Economics of Transportation
Essays on the Economics of Transportation
Essays on the Economics of Transportation

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자료유형  
 학위논문 서양
최종처리일시  
20250211153015
ISBN  
9798384045809
DDC  
385
저자명  
Rowberry, Brock Andrew.
서명/저자  
Essays on the Economics of Transportation
발행사항  
[Sl] : University of Michigan, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
186 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: A.
주기사항  
Advisor: Sotelo, Sebastian.
학위논문주기  
Thesis (Ph.D.)--University of Michigan, 2024.
초록/해제  
요약This dissertation contains three self-contained essays on the economics of transportation. Throughout these chapters, I investigate the role that the industrial organization of the transportation and logistics sectors exert in shaping inter-regional interactions. Special attention is paid to how the actors within these sectors shape trade costs.In chapter 1, I study how the forces governing hub location decisions in distribution networks influence international bilateral trade costs. Using data from a large humanitarian aid organization that operates a global distribution network of warehouses, I find that transportation costs between warehouses are about 30% lower on average than are those associated with final deliveries. I then embed a logistics organization's hub location problem within a quantitative model of international trade. I quantify the model using data from the humanitarian aid organization. I find that the structure of the optimal network is an important determinant for the inter-regional trade costs that the organization faces. Perturbing the network leads to an increase in average trade costs of between 10-20%. Moreover, removing the inter-warehouse discount results in a 75% increase in bilateral trade costs.In chapter 2, together with coauthors, we study how economies of scope in transportation shape domestic trade and aggregate welfare. Focusing on freight trucking in India we investigate how shipments move between regions. We find that transporters often collect multiple shipments issued by distinct sellers before delivering to destinations located close together. We argue that there exist economies of scope in transportation if this behaviour, grouping transactions together into fewer shipments, allows transporters to economize on fixed transport costs. We develop a quantitative trade model where the transportation sector permits economies of scope. Bilateral trade costs are endogenous to the routing choices made by heterogeneous transporters. When transporters find it profitable to exploit economies of scope by grouping shipments, they improve both the extensive and intensive margins of domestic trade. On one hand, the grouped shipments increase firms' access to destinations. On the other, the presence of route choice heterogeneity in the model implies that indirect routes lower average trade costs. We quantify the effect of economies of scope in transportation on broader economic outcomes and show that domestic trade flows would be 32% lower if transporters did not leverage economies of scope in transportation.Finally, in chapter 3, together with coauthors, we investigate the determinants of transport costs for road freight transportation in low and middle income countries. This paper studies patterns and determinants of road freight transport costs across 60 developing countries using a proprietary dataset of transport contracts procured by the same entity. This is, to our knowledge, the largest database of consistently measured overland freight transport costs in the literature. We use this data to document a high degree of variability in overland trucking rates both within and across countries. We show that characteristics of the shipment, origin, destination, and route influence transport costs. Factors like scale, infrastructure availability, conflict, and the opportunity for backhaul are all important. We also investigate the role of international borders in shaping freight rates and find a significant border effect: unit transport costs are about 70% larger when crossing an international border.
일반주제명  
Transportation
키워드  
Spatial economics
키워드  
International trade
키워드  
Economic geography
키워드  
Logistics
키워드  
Middle income countries
기타저자  
University of Michigan Economics
기본자료저록  
Dissertations Abstracts International. 86-04A.
전자적 위치 및 접속  
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MARC

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■1001  ▼aRowberry,  Brock  Andrew.
■24510▼aEssays  on  the  Economics  of  Transportation
■260    ▼a[Sl]▼bUniversity  of  Michigan▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a186  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  A.
■500    ▼aAdvisor:  Sotelo,  Sebastian.
■5021  ▼aThesis  (Ph.D.)--University  of  Michigan,  2024.
■520    ▼aThis  dissertation  contains  three  self-contained  essays  on  the  economics  of  transportation.  Throughout  these  chapters,  I  investigate  the  role  that  the  industrial  organization  of  the  transportation  and  logistics  sectors  exert  in  shaping  inter-regional  interactions.  Special  attention  is  paid  to  how  the  actors  within  these  sectors  shape  trade  costs.In  chapter  1,  I  study  how  the  forces  governing  hub  location  decisions  in  distribution  networks  influence  international  bilateral  trade  costs.  Using  data  from  a  large  humanitarian  aid  organization  that  operates  a  global  distribution  network  of  warehouses,  I  find  that  transportation  costs  between  warehouses  are  about  30%  lower  on  average  than  are  those  associated  with  final  deliveries.  I  then  embed  a  logistics  organization's  hub  location  problem  within  a  quantitative  model  of  international  trade.  I  quantify  the  model  using  data  from  the  humanitarian  aid  organization.  I  find  that  the  structure  of  the  optimal  network  is  an  important  determinant  for  the  inter-regional  trade  costs  that  the  organization  faces.  Perturbing  the  network  leads  to  an  increase  in  average  trade  costs  of  between  10-20%.  Moreover,  removing  the  inter-warehouse  discount  results  in  a  75%  increase  in  bilateral  trade  costs.In  chapter  2,  together  with  coauthors,  we  study  how  economies  of  scope  in  transportation  shape  domestic  trade  and  aggregate  welfare.  Focusing  on  freight  trucking  in  India  we  investigate  how  shipments  move  between  regions.  We  find  that  transporters  often  collect  multiple  shipments  issued  by  distinct  sellers  before  delivering  to  destinations  located  close  together.  We  argue  that  there  exist  economies  of  scope  in  transportation  if  this  behaviour,  grouping  transactions  together  into  fewer  shipments,  allows  transporters  to  economize  on  fixed  transport  costs.  We  develop  a  quantitative  trade  model  where  the  transportation  sector  permits  economies  of  scope.  Bilateral  trade  costs  are  endogenous  to  the  routing  choices  made  by  heterogeneous  transporters.  When  transporters  find  it  profitable  to  exploit  economies  of  scope  by  grouping  shipments,  they  improve  both  the  extensive  and  intensive  margins  of  domestic  trade.  On  one  hand,  the  grouped  shipments  increase  firms'  access  to  destinations.  On  the  other,  the  presence  of  route  choice  heterogeneity  in  the  model  implies  that  indirect  routes  lower  average  trade  costs.  We  quantify  the  effect  of  economies  of  scope  in  transportation  on  broader  economic  outcomes  and  show  that  domestic  trade  flows  would  be  32%  lower  if  transporters  did  not  leverage  economies  of  scope  in  transportation.Finally,  in  chapter  3,  together  with  coauthors,  we  investigate  the  determinants  of  transport  costs  for  road  freight  transportation  in  low  and  middle  income  countries.  This  paper  studies  patterns  and  determinants  of  road  freight  transport  costs  across  60  developing  countries  using  a  proprietary  dataset  of  transport  contracts  procured  by  the  same  entity.  This  is,  to  our  knowledge,  the  largest  database  of  consistently  measured  overland  freight  transport  costs  in  the  literature.  We  use  this  data  to  document  a  high  degree  of  variability  in  overland  trucking  rates  both  within  and  across  countries.  We  show  that  characteristics  of  the  shipment,  origin,  destination,  and  route  influence  transport  costs.  Factors  like  scale,  infrastructure  availability,  conflict,  and  the  opportunity  for  backhaul  are  all  important.  We  also  investigate  the  role  of  international  borders  in  shaping  freight  rates  and  find  a  significant  border  effect:  unit  transport  costs  are  about  70%  larger  when  crossing  an  international  border.
■590    ▼aSchool  code:  0127.
■650  4▼aTransportation
■653    ▼aSpatial  economics
■653    ▼aInternational  trade
■653    ▼aEconomic  geography
■653    ▼aLogistics
■653    ▼aMiddle  income  countries
■690    ▼a0501
■690    ▼a0601
■690    ▼a0703
■690    ▼a0709
■71020▼aUniversity  of  Michigan▼bEconomics.
■7730  ▼tDissertations  Abstracts  International▼g86-04A.
■790    ▼a0127
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164550▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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