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Drone-as-a-Service for last-mile delivery: Evidence of economic viability 最后一英里送货的无人机即服务:经济可行性的证据
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2025-02-12 DOI: 10.1016/j.ecotra.2025.100398
Evangelia Filiopoulou, Cleopatra Bardaki, Mara Nikolaidou, Christos Michalakelis
An economic viability of last-mile delivery via drones is assessed, offering an investment model comparing traditional motorcycle delivery to drone-based alternatives. Two drone investment options — purchase or lease (Drone-as-a-Service) — were introduced. The proposed last-mile delivery model considers capital and operational costs, calculating Net Present Value(NPV) and Return of Investment (ROI) per investment scenario. For the operational expenses, the energy consumption model for the motorcycle and the drone is formulated. Furthermore, three wind settings — low, medium, and high wind — were examined to account for environmental factors impacting drone performance. The investment model has been formulated and then validated considering the relevant literature as well as realistic information collected during a semi-structured interview with industry experts The findings affirm the financial feasibility of adopting drones for last-mile delivery. Drone-as-a-Service emerged as a more profitable choice, exhibiting improved NPV and ROI over owned drones or motorcycle delivery. Emphasizing DaaS in the investment model presents a probable scenario for the logistics industry, easing their transition to drone technology. Evidence of DaaS viability is of value since it could convince risk-averse distribution vendors to adopt drone delivery.
评估了无人机最后一英里配送的经济可行性,并提供了一个投资模型,将传统的摩托车配送与基于无人机的替代方案进行比较。引入了两种无人机投资选择——购买或租赁(无人机即服务)。建议的最后一英里交付模型考虑了资本和运营成本,计算每个投资场景的净现值(NPV)和投资回报率(ROI)。对于运行费用,分别建立了摩托车和无人机的能耗模型。此外,研究了三种风力设置——低、中、高风力——以考虑影响无人机性能的环境因素。考虑到相关文献以及在与行业专家的半结构化访谈中收集的现实信息,我们制定了投资模型,然后对其进行了验证。研究结果证实了采用无人机进行最后一英里交付的财务可行性。无人机即服务成为了一个更有利可图的选择,与拥有的无人机或摩托车交付相比,它表现出更高的NPV和ROI。在投资模型中强调DaaS为物流行业提供了一种可能的场景,有助于他们向无人机技术的过渡。DaaS可行性的证据是有价值的,因为它可以说服规避风险的分销供应商采用无人机交付。
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引用次数: 0
Strategic climate policy in global aviation: Aviation fuel taxes and efficiency standards with duopolistic aircraft producers 全球航空的战略气候政策:双寡头飞机生产商的航空燃油税和效率标准
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2025-02-10 DOI: 10.1016/j.ecotra.2025.100397
Marten Ovaere , Stef Proost
We develop a three-stage game with three governments, a EU-US aircraft production duopoly, and competitive airlines. The model determines the optimal combination of fossil fuel taxes and fuel efficiency standards to decarbonize the aviation sector with imperfect competition and technological spillovers, under various government cooperation levels. We find that without international cooperation, technology spillovers prevent large efficiency investments. Fuel taxes are low but exceed domestic climate damages in regions without aircraft production. Regions with domestic aircraft producers subsidize aviation when the social cost of carbon is low. Second, EU-US cooperation increases fuel efficiency, but fuel taxes are lower than without cooperation, such that carbon emission reductions are limited both with and without cooperation. Third, global cooperation yields the largest efficiency gains, but fuel taxes remain below the world climate damage. Finally, achieving net-zero emissions requires a combination of fuel efficiency, demand reduction through higher fuel taxes, and new aviation fuels.
我们与三个政府、欧盟和美国飞机生产双头垄断以及竞争激烈的航空公司建立了一个三阶段博弈。该模型确定了在不同政府合作水平下,在不完全竞争和技术溢出的情况下,化石燃料税和燃油效率标准的最优组合,以实现航空业的脱碳。我们发现,如果没有国际合作,技术溢出将阻碍大规模效率投资。在没有飞机生产的地区,燃油税很低,但超过了国内气候损失。当碳排放的社会成本较低时,拥有国内飞机生产商的地区会对航空业进行补贴。其次,欧盟与美国的合作提高了燃油效率,但燃油税比没有合作时要低,因此无论有无合作,碳减排都是有限的。第三,全球合作带来了最大的效率收益,但燃油税仍低于全球气候损害。最后,实现净零排放需要燃油效率、通过提高燃油税来减少需求和新型航空燃料的结合。
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引用次数: 0
Distributional effects of a vehicle miles traveled tax over the different vehicle efficiency 车辆行驶里程税对不同车辆效率的分配效应
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2025-02-05 DOI: 10.1016/j.ecotra.2025.100394
Jiyeon Cheon
This paper examines the distributional effects of a Vehicle Miles Traveled (VMT) tax, focusing on the increasing adoption of electric vehicles (EVs) in the United States. Using a two-period model that integrates decisions on vehicle selection and subsequent driving behavior, the study evaluates short-term changes in consumer surplus resulting from replacing a gasoline tax with a VMT tax. The results suggest that a revenue-neutral VMT tax could modestly increase consumer surplus by approximately $2 per vehicle annually. The analysis also reveals that a uniform federal VMT tax rate leads to varying outcomes across states. Furthermore, the findings demonstrate that the policy’s efficiency improves with higher EV adoption rates. Specifically, when EVs account for 5% of the market share, the additional consumer surplus generated by EV adoption is twice the surplus achieved through a revenue-neutral VMT tax.
本文考察了车辆行驶里程(VMT)税的分配效应,重点关注美国电动汽车(ev)的日益普及。该研究使用了一个将车辆选择决策和随后的驾驶行为整合在一起的两期模型,评估了以车辆行驶里程税取代汽油税后消费者剩余的短期变化。结果表明,收入中性的VMT税可以适度地增加每辆车每年约2美元的消费者剩余。分析还显示,统一的联邦汽车行驶里程税率导致各州的结果不同。此外,研究结果表明,随着电动汽车采用率的提高,该政策的效率也会提高。具体来说,当电动汽车占市场份额的5%时,采用电动汽车产生的额外消费者剩余是通过收入中性的VMT税实现的剩余的两倍。
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引用次数: 0
Systematic peak-load pricing during holiday periods: Evidence from the U.S. airline industry 假日期间系统的高峰负荷定价:来自美国航空业的证据
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2025-01-30 DOI: 10.1016/j.ecotra.2025.100395
Alberto A. Gaggero , Alexander Luttmann
When faced with capacity constraints, firms may moderate demand by increasing prices when demand is known to be high ex-ante (i.e., systematic peak-load pricing). In this article, we examine the extent and duration of systematic peak-load pricing in the days surrounding public holidays in the U.S. airline industry. Applying two-stage least squares techniques to a unique panel of over 18 million fares, we estimate travel premiums ranging from 4.3% to 83.1% in the days surrounding national holidays and from 2.7% to 34.7% in the days surrounding federal holidays. We also find that the duration of the peak-travel period is longer for national holidays and shorter for federal holidays. Examining heterogeneity in holiday peak-load pricing, we find some evidence that travel premiums during national holidays are larger on longer-distance routes, on routes to or from slot-controlled airports, on routes to leisure destinations, and on ultra-low-cost carriers.
当面临产能限制时,企业可能会在事先知道需求很高的情况下通过提高价格来调节需求(即系统的峰值负荷定价)。在本文中,我们研究了美国航空业在公共假期前后系统高峰负荷定价的程度和持续时间。将两阶段最小二乘技术应用于超过1800万张票价的独特面板,我们估计在国家法定假日期间的旅行保费从4.3%到83.1%不等,在联邦法定假日期间从2.7%到34.7%不等。我们还发现,国家法定假日的高峰旅行时间更长,而联邦假日的高峰旅行时间更短。在考察假日高峰负荷定价的异质性时,我们发现一些证据表明,在国家法定假日期间,长途航线、往返于时隙控制机场的航线、前往休闲目的地的航线和超低成本航空公司的旅行保费较大。
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引用次数: 0
Oil price shocks and airlines stock return and volatility – A GFEVD analysis 油价冲击与航空公司股票收益和波动性——GFEVD分析
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2025-01-26 DOI: 10.1016/j.ecotra.2025.100396
Yifei Cai , Yahua Zhang , Anming Zhang
Using the Generalized Forecast Error Variance Decomposition (GFEVD) method, this study assesses the effects of oil price shocks on both the return and volatility of aviation stocks. Specifically, we examine how different types of oil supply shocks—such as those related to oil supply, economic activity, oil consumption demand, and oil inventory—impact airline returns and volatility. Our findings indicate that fluctuations in airline returns primarily stem from economic activity shocks. However, the volatility of airlines is influenced by a range of shocks. Lastly, we offer important policy implications tailored for airline managers, market investors, and policymakers to navigate this relationship effectively.
本文采用广义预测误差方差分解(GFEVD)方法,评估了油价冲击对航空股收益和波动率的影响。具体来说,我们研究了不同类型的石油供应冲击(如与石油供应、经济活动、石油消费需求和石油库存相关的冲击)如何影响航空公司的回报和波动性。我们的研究结果表明,航空公司回报的波动主要源于经济活动的冲击。然而,航空公司的波动性受到一系列冲击的影响。最后,我们为航空公司管理者、市场投资者和政策制定者提供了重要的政策建议,以有效地驾驭这种关系。
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引用次数: 0
Demand-shock characteristics and pricing behavior: A natural experiment from UEFA Euro 2016 需求冲击特征和定价行为:2016年欧洲杯的自然实验
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2025-01-21 DOI: 10.1016/j.ecotra.2025.100393
Claudio A. Piga , Alberto A. Gaggero , Marco Alderighi
We consider a multi-period, limited capacity, unsegmented airline pricing model whose solution returns a sequence of increasing prices based on the order of sale. We show that a positive demand shock corresponding to an increase in the arrival rate reduces within-period price dispersion and has a minor impact on the sequence’s maximum prices. Alternatively, upward shifts in customers’ willingness-to-pay lead to higher maximum prices but do not affect within-period price dispersion. Demand shocks are identified in our sample by the draw that created the stage groups for the UEFA Euro 2016 soccer tournament. After the draw, some flights became suitable to transport foreign supporters to the location where matches were scheduled. Consistent with the theory, a different price behavior is observed between UK and continental European routes.
我们考虑一个多时期、有限容量、未分段的航空公司定价模型,其解返回一个基于销售顺序的价格递增序列。我们表明,与到达率增加相对应的积极需求冲击减少了期间内价格分散,并对序列的最大价格产生了轻微影响。另一种情况是,消费者支付意愿的上升导致最高价格上升,但不影响期内价格离散。在我们的样本中,需求冲击是通过抽签确定的,抽签产生了2016年欧洲足球锦标赛的阶段分组。抽签结束后,一些航班适合运送外国球迷到比赛地点。与理论一致的是,在英国和欧洲大陆航线之间观察到不同的价格行为。
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引用次数: 0
Spread valuation and risk on transport infrastructure loans 交通基础设施贷款的价差估值与风险
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2025-01-11 DOI: 10.1016/j.ecotra.2024.100392
Antonio Lara-Galera, Vicente Alcaraz-Carrillo de Albornoz, Juan Molina-Millán, Belén Muñoz-Medina
For some time now, public administrations in many countries have been subject to strict budgetary constraints to control the public deficit. The Public Private Partnership (PPP) model in this context is a useful vehicle to develop public infrastructures. Despite its attractiveness and potential, there is an accumulation of evidence that questions this model with different experiences showing that PPPs are relatively risky projects for all participants. This is especially true for financial creditors, who usually lend up to 85% of the funds needed for financing the project.
The main objective of this research is to develop a methodology for valuing the financial cost of loans in PPP projects for transportation infrastructure, depending on demand risk. This paper proposes the use of option pricing approach to determine the loan spread in PPP transport projects.
To mitigate the risk faced by project financiers, it would be necessary to guarantee the repayment of the debt service. Given that the project's cash flows are uncertain due to demand risk, the cost associated with this guaranty reflects the risk premium that financiers bear as well as the overall cost of financing.
This guarantee may be determined as a derivative (an option) of the project traffic.
To test this methodology, a real regional toll motorway in Spain has been used, comparing the contractual risk premium of the bank loans obtained with the risk premium calculated by the proposed model.
This research indicates that the spread on concessional loans significantly decreases over time, paralleling the reduction in traffic risk, and is notably higher during the initial years of the project. Furthermore, discrepancies between the projected and actual initial traffic have a substantial impact on the risk assumed by lenders. As limitation of this study, it is important to note that in practice the risk premium incorporates other relevant variables for the project and the industry that are not considered in this study.
一段时间以来,许多国家的公共行政一直受到严格的预算限制,以控制公共赤字。在这种情况下,公私伙伴关系(PPP)模式是发展公共基础设施的有用工具。尽管公私伙伴关系具有吸引力和潜力,但有越来越多的证据表明,不同的经验表明,公私伙伴关系对所有参与者来说都是相对有风险的项目。对于金融债权人来说尤其如此,他们的贷款通常高达项目融资所需资金的85%。本研究的主要目的是根据需求风险,开发一种评估交通基础设施PPP项目贷款财务成本的方法。本文提出采用期权定价方法确定PPP交通项目的贷款利差。为了减轻项目融资者面临的风险,有必要保证偿还债务。鉴于项目的现金流由于需求风险而具有不确定性,因此与此担保相关的成本反映了融资方承担的风险溢价以及融资的总体成本。该保证可以确定为项目流量的派生(选项)。为了验证这一方法,我们使用了西班牙的一个真实的区域收费高速公路,将获得的银行贷款的合同风险溢价与所提出模型计算的风险溢价进行比较。这项研究表明,优惠贷款的息差随着时间的推移而大大减少,与交通风险的减少同时减少,在项目的最初几年明显更高。此外,预计流量和实际初始流量之间的差异对贷款人承担的风险有重大影响。由于本研究的局限性,值得注意的是,在实践中,风险溢价包含了本研究未考虑的项目和行业的其他相关变量。
{"title":"Spread valuation and risk on transport infrastructure loans","authors":"Antonio Lara-Galera,&nbsp;Vicente Alcaraz-Carrillo de Albornoz,&nbsp;Juan Molina-Millán,&nbsp;Belén Muñoz-Medina","doi":"10.1016/j.ecotra.2024.100392","DOIUrl":"10.1016/j.ecotra.2024.100392","url":null,"abstract":"<div><div>For some time now, public administrations in many countries have been subject to strict budgetary constraints to control the public deficit. The Public Private Partnership (PPP) model in this context is a useful vehicle to develop public infrastructures. Despite its attractiveness and potential, there is an accumulation of evidence that questions this model with different experiences showing that PPPs are relatively risky projects for all participants. This is especially true for financial creditors, who usually lend up to 85% of the funds needed for financing the project.</div><div>The main objective of this research is to develop a methodology for valuing the financial cost of loans in PPP projects for transportation infrastructure, depending on demand risk. This paper proposes the use of option pricing approach to determine the loan spread in PPP transport projects.</div><div>To mitigate the risk faced by project financiers, it would be necessary to guarantee the repayment of the debt service. Given that the project's cash flows are uncertain due to demand risk, the cost associated with this guaranty reflects the risk premium that financiers bear as well as the overall cost of financing.</div><div>This guarantee may be determined as a derivative (an option) of the project traffic.</div><div>To test this methodology, a real regional toll motorway in Spain has been used, comparing the contractual risk premium of the bank loans obtained with the risk premium calculated by the proposed model.</div><div>This research indicates that the spread on concessional loans significantly decreases over time, paralleling the reduction in traffic risk, and is notably higher during the initial years of the project. Furthermore, discrepancies between the projected and actual initial traffic have a substantial impact on the risk assumed by lenders. As limitation of this study, it is important to note that in practice the risk premium incorporates other relevant variables for the project and the industry that are not considered in this study.</div></div>","PeriodicalId":45761,"journal":{"name":"Economics of Transportation","volume":"41 ","pages":"Article 100392"},"PeriodicalIF":2.2,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of numerical platforms on individual choices and social welfare: The case of short-distance carpooling 数字平台对个人选择和社会福利的影响——以短途拼车为例
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2024-12-22 DOI: 10.1016/j.ecotra.2024.100389
Alix Le Goff , Guillaume Monchambert , Martin Koning
This paper investigates the effects of carpooling organization on the propensity to carpool. We test whether pre-trip planning and the use of a platform influence the choice of carpooling over driving alone and public transport. In a stated choice experiment, we collected responses from 3600 residents of the Lyon urban area, France. Our econometric results suggest that platforms increase individual willingness to carpool, and that the effect of the platform is stronger for passengers than for drivers. We illustrate these results with a stylized social welfare analysis, which reveals a significant contradiction between what would be needed to make carpooling beneficial from a welfare perspective – passengers should be subsidized – and the current pricing schemes, which subsidize mainly drivers.
本文研究了拼车组织对拼车倾向的影响。我们测试了出行前的计划和平台的使用是否会影响拼车的选择,而不是独自驾驶和公共交通。在一项陈述性选择实验中,我们收集了法国里昂城区3600名居民的回答。我们的计量结果表明,平台增加了个人拼车意愿,并且平台对乘客的影响大于对司机的影响。我们用一种程式化的社会福利分析来说明这些结果,该分析揭示了从福利角度来看,让拼车受益所需的条件——乘客应该得到补贴——与目前主要补贴司机的定价方案之间存在重大矛盾。
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引用次数: 0
Mode choice inertia and shock: Three months of almost fare-free public transport in Germany 模式选择的惯性和冲击:德国公共交通三个月几乎免费
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2024-12-12 DOI: 10.1016/j.ecotra.2024.100382
Maria Fernanda Guajardo Ortega, Heike Link
This study analyses travellers’ behavioural responses to two temporal measures implemented by the German government: the reduction in public transport prices, making it almost fare-free, and a decrease in fuel taxes to the minimum level permitted by European law. Based on a panel dataset of GPS-tracked trips collected before and during the price intervention from a representative sample of 276 individuals, with 1650 commuter trips per month. We estimate mixed logit models incorporating two temporal effects—inertia and shock—to account for habitual behaviour and capture both interventions' impact. The only travel mode with significant inertia is car, indicating that car drivers are less likely to change their travel mode. While the shock parameter for the fuel price intervention was not significant, we found a significant and positive shock effect for public transport which decreased over time during the policy. Furthermore, elasticities calculated pre- and during the intervention are considerably lower when habitual behaviour is considered. From the existence of inertia effects and low price elasticities, we conclude that the temporary intervention of almost fare-free public transport alone was not sufficient to achieve a modal shift from car to public transport for commuter trips.
这项研究分析了旅行者对德国政府实施的两项临时措施的行为反应:降低公共交通价格,使其几乎免费,以及将燃油税降低到欧洲法律允许的最低水平。基于在价格干预之前和期间收集的gps跟踪旅行的面板数据集,这些数据来自276个具有代表性的样本,每月有1650次通勤旅行。我们估计混合logit模型包含两种时间效应——惯性和冲击——来解释习惯行为,并捕捉两种干预措施的影响。唯一具有显著惯性的出行方式是汽车,这表明汽车驾驶员改变出行方式的可能性较小。虽然燃油价格干预的冲击参数不显著,但我们发现公共交通的冲击效应显著且积极,随着政策的实施时间的推移而下降。此外,当考虑习惯行为时,干预前和干预期间计算的弹性要低得多。从惯性效应和低价格弹性的存在来看,我们得出结论,仅靠几乎免费的公共交通的临时干预不足以实现通勤出行方式从汽车转向公共交通的转变。
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引用次数: 0
Service-quality and pricing strategies in the airline industry: The role of distance 航空公司的服务质量和定价策略:距离的作用
IF 2.2 3区 工程技术 Q2 ECONOMICS Pub Date : 2024-12-01 DOI: 10.1016/j.ecotra.2024.100381
Xavier Fageda , Ricardo Flores-Fillol
This paper analyzes airlines’ fare and frequency decisions, both theoretically and empirically. These decisions depend on route distance, as only short-haul routes are affected by intermodal competition from personal transportation. Although fares increase with distance both on short- and long-haul routes, the effect of distance on frequencies depends on the presence of intermodal competition. Frequencies decay with distance on long-haul routes. However, on short-haul routes, frequencies increase with distance because airlines try to boost profits by attracting demand from other transportation modes. Finally, on short-haul routes, intermodal competition from personal transportation affects more intensively network carriers than low-cost carriers as distance rises, which produces an increased differentiation between both types of airlines.
本文从理论和实证两方面对航空公司的票价和航班决策进行了分析。这些决定取决于路线距离,因为只有短途路线会受到来自个人运输的多式联运竞争的影响。虽然短途和长途航线的票价都随着距离的增加而增加,但距离对频率的影响取决于多式联运竞争的存在。在长途航线上,频率随距离而衰减。然而,在短途航线上,航班频率随着距离的增加而增加,因为航空公司试图通过吸引其他运输方式的需求来提高利润。最后,在短途航线上,随着距离的增加,来自个人运输的多式联运竞争对网络航空公司的影响比对低成本航空公司的影响更大,这使得两类航空公司之间的差异越来越大。
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引用次数: 0
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Economics of Transportation
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