IF 6.5 1区经济学

Habitat International Pub Date : 2025-06-12 DOI: 10.1016/j.habitatint.2025.103475

Juchao Zhao , Xiaojun Wang , Entong Ke , Yaolong Zhao

{"title":"Enhancing urban flood resilience: a LightGBM-NSGA2 hybrid model for impervious surface optimization","authors":"Juchao Zhao , Xiaojun Wang , Entong Ke , Yaolong Zhao","doi":"10.1016/j.habitatint.2025.103475","DOIUrl":"10.1016/j.habitatint.2025.103475","url":null,"abstract":"<div><div>Urban renewal is a planned transformation activity in the new development stage of larger cities, and leveraging this opportunity to optimize the spatial layout of impervious surfaces is an important approach to enhancing urban flood resilience. To improve the efficiency of impervious surface optimization, this study integrates machine learning techniques to propose a multi-objective optimization model that considers the spatial characteristics of surrounding units. Firstly, spatial feature information of impervious surfaces around each geographic unit was extracted using a sliding window approach, based on three representative landscape pattern indices: area, shape, and aggregation. Subsequently, data on elevation, slope, water bodies, impervious surfaces, drainage outlet density, and flood points were incorporated to construct a robust flood risk assessment model using the Light Gradient Boosting Machine (LightGBM) algorithm. Finally, this model was coupled with the Non-dominated Sorting Genetic Algorithm 2 to optimize the spatial layout of impervious surfaces. The results show that: (1) LightGBM demonstrated higher accuracy and robustness in urban flood risk assessment compared to other machine learning algorithms; (2)while the total impervious surface area remained nearly unchanged, urban flood risk was reduced by 25.4 %, and the number of historical flood points in medium-high risk and above areas is reduced by 58.82 %.; (3) compared to pre-optimization, the area proportions of medium-risk, medium-high-risk, and extremely high-risk zones decreased by 35.19 %, 50.68 %, and 66.49 %, respectively. By reducing flood risk, our research provides urban planners with an effective tool to mitigate the increasingly severe urban flooding issues, and it offers valuable references for other similar spatial planning challenges.</div></div>","PeriodicalId":48376,"journal":{"name":"Habitat International","volume":"163 ","pages":"Article 103475"},"PeriodicalIF":6.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fusing sequence and graph deep learning considering dynamic influence of built environment for crowd flow prediction 考虑建筑环境动态影响的序列与图深度学习融合人群流量预测

IF 6 1区经济学

Cities Pub Date : 2025-06-12 DOI: 10.1016/j.cities.2025.106138

Haibo Wang , Zhaolang Wu , Qing Hou , Ming Cai

{"title":"Fusing sequence and graph deep learning considering dynamic influence of built environment for crowd flow prediction","authors":"Haibo Wang , Zhaolang Wu , Qing Hou , Ming Cai","doi":"10.1016/j.cities.2025.106138","DOIUrl":"10.1016/j.cities.2025.106138","url":null,"abstract":"<div><div>Accurate modeling and prediction of crowd dynamics at a detailed spatiotemporal level is crucial for urban planning and management. Crowd travel is deeply influenced by built environment. But most of the crowd flow prediction research treated the built environment as a static feature. This study proposes a deep learning-based method considering dynamic influence of built environment to overcome the gap. The time-based multiscale geographic weighted regression is utilized to quantify the dynamic impact of built environment on flows over time. Then, a deep learning module is used to capture the spatial and temporal dependency of the crowd flows. Finally, an operation that fuses the spatiotemporal dependency, dynamic impact of built environment and synchronous features is applied to the crowd flow prediction. Two cases in Guangzhou and Beijing are conducted to demonstrate the superiority of the proposed method. The results are the following: 1) in the Guangzhou case, the prediction errors of the proposed method are 18.22 in mean absolute error and 2.97 % in mean absolute percentage error, which outperforms the benchmark methods; 2) in the Beijing case, the method proposed almost has a lower MAE and MAPE than the benchmark methods in 30- or 60-min time interval prediction; and 3) compared with consideration of static impact, the proposed model of the accuracy respectively increases 2.74 % and 5.72 % in mean absolute error and mean absolute percentage error with consideration to the dynamic influence of built environment.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"165 ","pages":"Article 106138"},"PeriodicalIF":6.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rising Markups and the Role of Consumer Preferences 不断上涨的加价和消费者偏好的作用

IF 8.2 1区经济学

Journal of Political Economy Pub Date : 2025-06-12 DOI: 10.1086/735510

Hendrik Döpper, Alexander MacKay, Nathan H. Miller, Joel Stiebale

引用次数: 0

Does environmental regulation complement ESG Disclosure? Evidence from the emergence of pollution emission permits regime in China 环境监管是否补充了ESG信息披露？证据来自中国污染排放许可制度的出现

IF 2.1 4区经济学

Economics Letters Pub Date : 2025-06-12 DOI: 10.1016/j.econlet.2025.112442

Yafei Li , James Si Zeng , Shaoxiang Jiang

引用次数: 0

Hidden mining capitalism, mineral transportation chain, and gendering livelihoods in Africa's artisanal and small-scale mining: Evidence from northern Ghana 隐藏的矿业资本主义、矿产运输链和非洲手工和小规模采矿中的性别生计：来自加纳北部的证据

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-06-11 DOI: 10.1016/j.resourpol.2025.105608

Francis Arthur-Holmes , Jennifer Dokbila Mengba

{"title":"Hidden mining capitalism, mineral transportation chain, and gendering livelihoods in Africa's artisanal and small-scale mining: Evidence from northern Ghana","authors":"Francis Arthur-Holmes , Jennifer Dokbila Mengba","doi":"10.1016/j.resourpol.2025.105608","DOIUrl":"10.1016/j.resourpol.2025.105608","url":null,"abstract":"<div><div>Despite the artisanal and small-scale mining (ASM) literature on mineral transportation roles and gender inequalities, there has been little empirical investigation and theorization of how the mineral transportation chain perpetuates hidden labor exploitation and contributes to the gender pay gap in the sector. This paper conceptualizes “hidden mining capitalism” to explore the often concealed labor exploitation of women's work in the mineral transportation chain in Africa's ASM industry using the case of Northern Ghana. Drawing from our qualitative research, findings highlight that women's involvement in different stages of the mineral transportation chain from the extraction of the mineralized rocks (e.g. gold ore) to the crushing, shanking (i.e. sieving), milling, and washing centers are unremunerated, thus revealing socio-historically and structurally embedded dynamics of women's livelihoods, economic exploitation, and dimensions of “gendered sympathy” towards women in ASM settings. Findings also reveal that rural poverty causes increasing feminization of ASM operations, resulting in women's surplus labor that further produces several pathways for economic exploitation and unsafe working environment. Our inquiry showcases that intersectional factors (such as age, social networks, shanking experience, and ethnicity) shape women's access to transportation and processing roles as mining livelihoods to advance their economic independence and overall well-being. In exploring the above issues, we raise questions about women's role in the mineral transportation chain, particularly those related to economic exploitation (e.g. shanking) and the need for gender-sensitive on-site formalization policies.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"107 ","pages":"Article 105608"},"PeriodicalIF":10.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Common institutional investors and board representation in rival firms 共同的机构投资者和竞争对手公司的董事会代表

IF 7.2 1区经济学

Journal of Corporate Finance Pub Date : 2025-06-11 DOI: 10.1016/j.jcorpfin.2025.102836

Heng Geng , Harald Hau , Roni Michaely , Binh Hoang Nguyen

引用次数: 0

Jensen and Meckling at 50 詹森和梅克林在50

IF 8.9 1区经济学

Journal of Financial Economics Pub Date : 2025-06-11 DOI: 10.1016/j.jfineco.2025.104116

Patrick Bolton

引用次数: 0

Contract breach with overconfident expectations: Experimental evidence on reference-dependent preferences 过度自信预期下的契约违约：参考依赖偏好的实验证据

IF 1 3区经济学

Games and Economic Behavior Pub Date : 2025-06-11 DOI: 10.1016/j.geb.2025.05.012

Sabine Fischer , Kerstin Grosch

引用次数: 0

Liberal norms, colonial sediments: the case of OECD aid statistics 自由规范，殖民沉淀：以经合组织援助统计为例

IF 4.3 1区经济学

Review of International Political Economy Pub Date : 2025-06-11 DOI: 10.1080/09692290.2025.2515143

Anna Khakee, Christa Callus

引用次数: 0

Probabilistic ambiguity, outcome ambiguity or both: Does it matter for the decision-maker? 概率模糊性、结果模糊性或两者兼而有之：这对决策者有影响吗？

IF 1.6 3区经济学

Journal of Behavioral and Experimental Economics Pub Date : 2025-06-11 DOI: 10.1016/j.socec.2025.102390

Marielle Brunette , Stéphane Couture , Kene Boun My

引用次数: 0

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