Increasing Population Growth Research Articles

IoT-enabled smart cities towards green energy systems: a review

<span>Integration of internet of things (IoT) in smart city management to improve various functions and living standards due to increasing population growth has dramatically evolved ubiquitous and essential services at various stages of urbanization. Hence, smart cities need to be eco-friendly by improving various sectors like education, health, and transport to provide an urban and sustainable quality of life through solving complicated green energy networks, controlling toxic pollution risks, and public safety. Linking optimized green energy systems with the production and automation of advanced applications is crucial to compose implementation strategies for smart city services. This paper aims to conduct a review on eco-friendly plans and infrastructure of IoT-enabled smart cities by exploiting green energy approaches. This study performs critical observations, ideas, and analyses of recent research in the context of our mentioned research theme. This paper points out the technical and functional challenges of an optimal performance-based green IoT-enabled smart city infrastructure. In this sense, this study organizes observations of relevant initiatives, technologies, and experiences in IoT-enabled smart cities, as well as how to embed it with green energy. Moreover, it can provide significant directions to intellectuals and authorities to develop IoT-enabled smart city applications for prospective research.</span>

Agent-Based Geosimulation of Yayoi Period Population Dynamics in Kyushu, Japan

Current scholarship in Japanese archaeology recognizes the people and culture of the Yayoi period as being descended from both continental migrants (Toraijin) and the native inhabitants (Jomon people). However, the number of migrants that came to Japan and the degree to which they were directly responsible for the development of Yayoi culture is a topic of debate. Using northern Kyushu as a case study, the author employs an agent-based simulation based on geospatial data to model the spread of population, rice agriculture, and continental genetics during the Early Yayoi period. Multiple simulations are performed with varying parameters related to migrant population size, marriage customs, and the ratio of men to women amongst migrants to test their effect on the demographics of the Yayoi period. Simulation results were compared to population estimates and the distribution of mitochondrial DNA in order to determine their validity. Experiment 1 showed that the average number of continental migrants was likely in the order of magnitude of 10s of people per year (approx. 40 to 50) during the first 500 years of the Yayoi period. Experiment 2 demonstrated that polygyny can lead to increased population growth and aids in the spread of continental genetics, but without more rigorous evaluation criteria it is difficult to conclude whether it was practiced during the period. The methods used in this study demonstrate how agent-based simulations can model realistically sized populations moving through geographic space by basing simulation inputs on geospatial data and population estimates.

Whole Genomes Inform Genetic Rescue Strategy for Montane Red Foxes in North America.

A few iconic examples have proven the value of facilitated gene flow for counteracting inbreeding depression and staving off extinction; yet, the practice is often not implemented for fear of causing outbreeding depression. Using genomic sequencing, climatic niche modeling, and demographic reconstruction, we sought to assess the risks and benefits of using translocations as a tool for recovery of endangered montane red fox (Vulpes vulpes) populations in the western United States. We demonstrated elevated inbreeding and homozygosity of deleterious alleles across all populations, but especially those isolated in the Cascade and Sierra Nevada ranges. Consequently, translocations would be expected to increase population growth by masking deleterious recessive alleles. Demographic reconstructions further indicated shallow divergences of less than a few thousand years among montane populations, suggesting low risk of outbreeding depression. These genomic-guided findings set the stage for future management, the documentation of which will provide a roadmap for recovery of other data-deficient taxa.

The ripple effects of climate change on agricultural sustainability and food security in Africa

AbstractClimate change results in lower agricultural outputs, disruption of food supply chains, and widening of the social gap between poor and rich in developing countries, with more vulnerable groups being pushed into untold poverty. This review aims to investigate the consequences of climate change on food insecurity in Africa in the context of environmental degradation. This review emphasizes the complexity of demands on food security systems due to changing climatic conditions under the four pillars (availability, accessibility, utilization, and stability). This review demonstrated the susceptibility of farm production to changes in temperature, precipitation, and weather patterns generated by climate change. In addition, this review investigated the factors shaping food insecurity, such as increasing population growth, poverty, inadequate early warning systems, and weak agricultural infrastructure. Furthermore, the review points out how climate change affects food prices and availability and the widening income gap, potentially leading to social unrest and political instability in Africa. Vulnerable populations, including impoverished, elderly, and physically challenged individuals, are at increased risk due to climate‐related health impacts. Women who face gender inequalities and socioeconomic limitations are particularly susceptible. We posit that there is a need for comprehensive strategies that address health disparities and consider vulnerable subgroups within society alongside broader measures to enhance food security in the face of climate change.

Reformulation of Policies to Prevent Land Conversion of Rice Fields In Achieving Indonesia's National Food Security

Background Increased population growth and imbalance between the need for rice are driving the conversion of numerous rice fields into non-agricultural zones and posing a significant threat to national food security. Therefore, this research is carried out to effectively address Indonesian government’s policy in preventing conversion of rice fields due to the lack of harmonization between cross-sectoral policies. Method A juridical-normative research method is used to analyze policy problems through legal theory and reality. The method is studying regulations against social phenomenon in food security sourced from the unconformity between the policies and the reality. It started by elaborating a way of thought, synthesizing conclusions, stating errors, and advising the re-formulation of policies to change the appropriation of land that in turn will affect national food security. Results The results show that there is proposed concept for reformulating rice field policies to integrate policies across sectors, ensure coherence in policy planning, and enhance the efficiency policies. The addition and harmonization of the components will strengthen the protection of the rice fields while preventing inconsistency and overlapping of authority from different sectors. The realization of this re-formulation will in time manifest national food security. Conclusions Indonesian government stipulates various policies to prevent the conversion of rice fields and to manifest national food security. However, of inconsistency and overlapping authority persist in its practice. Further close examination and reviews show the need reformation of policy for a transfer of land appropriation.

ANALISIS PERUBAHAN PENUTUPAN ;AHAN DAN FAKTOR PENDORONG PENGGUNAAN LAHAN KAWASAN HUTAN DESA LAIYA, MAROS

Land cover change is strongly influenced by land use. Increasing population growth results in the need for food and other needs. The causes of land use change are influenced by human activities or activities that directly affect land use. Physical, social and economic factors are factors that trigger land use change in Laiya Village, Cenrana District. The purpose of this study was to describe land cover change in Laiya Village, Cenrana Subdistrict for the period 2011, 2015 and 2019 and to determine the driving factors that influence land use change around the forest area of Laiya Village. This research uses GIS analysis to analyze and see land cover changes that occur and qualitative descriptive methods to determine land use changes. The period 2011-2015 mixed dryland agriculture decreased in area by 2,893.19 ha while shrubs increased in area by 2,744.51 ha. The period 2015-2019 mixed dryland agriculture experienced an increase in land area of 3,030.64 ha and shrubs experienced a decrease in land area of 2,744.51 ha. Factors that influence land use change are physical, social and economic factors. Socio-economic factors are the main driving factor of land use change, the need for land for settlements is increasing due to the high population density that occurs around the forest area of Laiya Village, Cenrana District, Maros Regency which causes people to utilize land as an economic source.

Characteristics of Activated Carbon Panels in Reducing CO, NO2, HC, Pb, and Noise

Increasing population growth has resulted in increased vehicle ownership and the need for parking facilities, including in basements. This study aimed to explore the efficacy of palm shell activated carbon panels in reducing CO, NO2, HC, Pb, and noise. The experiment was conducted in a 4 m x 3 m x 2.1 m room using three treatments: without installed activated carbon panels; with 1 cm x 20 cm x 20 cm activated carbon panels; and with 2 cm x 20 cm x 20 cm activated carbon panels. During the measurement, three motorcycles were turned on and kept in idle mode. The concentrations of CO, NO2, HC, ambient Pb, and noise were measured. The results showed that the activated carbon panels were able to reduce CO, NO2, Pb, HC, and noise. The highest performance was obtained for 2-cm thickness of activated carbon panels, with CO, NO2, HC, Pb, and noise decreasing to 824 µg/m3, 8.4 µg/m3, 4.4 µg/m3, 0.2 µg/m3, and 87.44 dB, respectively. Following the adsorption process, the carbon content and pore size of the activated carbon panels had changed from 68.32% to 90.95% and 0.17-3.652 µm to 0.34-5.56 µm respectively for testing with 2-cm thickness panels.

Central Tendency Data Real-Time Acid Rain Measurement to Evaluate Tool’s Performance Using Statistical Analysis

Increased population growth has implications for increased industrial and transportation activities. This activity increased gas emissions in the form of Sulfur Dioxide (SO2) and Nitrogen Dioxide (NO2), resulting in acid rain. The measuring instrument, a rain gauge, is used to measure acid rain in Greater Bandung at Telkom University, Indonesia, but it is currently unable to measure in real-time. Therefore, this study aims to measure acid rain in real-time by measuring parameters such as pH, temperature, conductivity, and precipitation to test the acidity contained in rainwater and evaluate the tool's performance with data for March 2022. The analysis uses various statistical methods: anomaly detection, outlier detection, central tendency, person correlation analysis, Mean Absolute Percentage Error, T-test, and Analysis of Variance (ANOVA). Each parameter can be worked out in real-time based on the central tendency and rain dispersion results. If there is only daily rain, then the correlation for each parameter is the highest, namely pH if there is acid rain. The real-time average pH is 6.45; in the laboratory, it is 6.56, so the MAPE value is 5.37 (good category). Even though this tool can work well, it needs to improve the quality of the temperature control in it. Since temperature significantly affects pH, the results show a negative correlation of -0.80 between pH and temperature. In the ANOVA test, the resulting p-value, when compared with data in the laboratory, is >0.05, meaning that the average daily pH does not have a significant difference from the average laboratory test.

Analysis Of Mangrove Land Cover In The Sawo Marine Conservation Area, North Nias District

Sawo sub-district of North Nias Regency has a mangrove ecosystem that has been designated as a Regional Marine Conservation Area (KKLD) with an area of 29,230.85 ha. The 2005 earthquake and tsunami are reported to have caused damage to mangrove ecosystems due to rising land levels. The increase in land surface has resulted in the destruction of mangroves in this area. This has an impact on the sustainability of the mangrove ecosystem in this region and is important to study. The purpose of this study is to analyze changes in mangrove land cover after the tsunami in 2006 to 2022 and to analyze the impact of changes in mangrove land cover. The results found that mangrove land cover continues to experience a reduction in area, in 2006 an area of 139.78 ha and continues to decline until the remaining 70.87 ha in 2022. This is due to the increasing population growth that causes mangrove forest degradation and land conversion into agricultural land, plantations and infrastructure. The increase in population is a driving force, land clearing for settlements and plantations is a pressure factor (Pressures), land use change is a factor of existing conditions (State), reduced mangrove land area is part of the impact (Impact) and coastal spatial planning, counseling to reforestation is a response (Response). Land conversion to other uses is a contributing factor to the continued loss of mangrove land in this area.Keywords: Mangrove, Land cover, GIS, DPSIR

The DPSIR (Driver, Pressure, State, Impact, Response) approach in analyzing the case of waste emergencies in Bandung City

Background: As the center of development and education in West Java, the city of Bandung has faced a waste problem that continues to increase along with increasing population growth. Indeed, there were two tragedies. In 2005 the Leuwigajah landfill exploded and in 2023 the Sarimukti landfill was burned. These tragedies became the climax of the Waste Emergency in the city of Bandung. Methods: By using the DPSIR framework and the literature research, this study aimed to gain a better understanding of the urban waste problem faced by each region, especially the city of Bandung. Finding: It was found that the government's Response only addresses Pressure and State, while Driving Force and Impact have not yet been addressed. Conclusion: From these results, it is recommended to raise awareness among residents of the city of Bandung through real appeals and persuasions, and to require manufacturers to be responsible for the distribution of their products. Novelty/Originality of this Study: The application of the DPSIR framework to analyze and address waste management emergencies in Bandung, Indonesia. While this method has been applied in various contexts, it has not been specifically tailored to the unique challenges of this region. This approach underscores the importance of addressing both immediate waste management issues and underlying consumer behaviors. It provides a comprehensive strategy that involves the engagement of the government, private sector, and community.

Analisis Daya Dukung Lahan untuk Permukiman di Kota Bukittinggi

Bukittinggi City, with the land conversion to built-up land continues to increase and the availability of land that does not increase, faces difficulties in utilizing land for settlements along with increasing population growth. The purpose of this study is to analyze the suitability of land for settlements and the carrying capacity of Bukittinggi City's residential land for the next 30 years. The quantitative descriptive research method with data presented through tables and maps, calculations refer to the Ministry of Environment's 2014 carrying capacity guidelines and RP3KP. The results of the study indicate that the area of land suitable for settlements is Suitable (S2) covering 710 ha, less suitable (S3) covering 1,147 ha, and not suitable covering 430 ha. For the carrying capacity of Bukittinggi City settlements, in Guguk Panjang District it is in the deficit class, with a DDPm value of 0.24, while 2 other districts are in the surplus class, with Mandiangin Koto Selayan District valued at 2.42, and Aur Birugo Tigobaleh District of 4.09. And for a period of 30 years, 2032, 2042, and 2052, Mandiangin Koto Selayan sub-district and Aur Birugo Tigobaleh sub district still have a surplus while Guguk Panjang sub-district is still in deficit.

Company Supply Chain Management Performance Seen from The Aspect of Information Sharing and Cooperation (Empirical Study of MSMEs in the Food Industry Sector in Kertajati Regency)

The small food processing industry is an industrial sector that is quite capable of surviving economic shocks, because every year the need for food increases along with increasing population growth. Small and medium industries have an important role in developing processing businesses, especially in the food sector. The Kertajati specialty processed food industry is an industry that has potential to be developed, because each region has its own characteristics and characteristics. Suppliers, manufacturers, distributors, retailers and customers work together in the product creation process through to product distribution to final consumers, giving birth to the concept of supply chain management. This research aims to analyze the influence of information sharing and cooperation on the performance of supply chain management of MSMEs in the Food Industry Sector in the Kertajati District Region, both partially and simultaneously. The population in this research is small and medium industries in Kertajati District, Majalengka Regency which are engaged in processed food production, totaling 92 MSMEs. The sample used 48 MSMEs as respondents from the entire population, by collecting data through questionnaires. The sampling technique in this research uses probability sampling with a simple random sampling method. The type and source of data used is primary. The analysis technique used is correlation, where previously an instrument test was carried out using validity and reliability tests, then data transformation and data normality test, then hypothesis testing was carried out partially with the t test and simultaneously with the F test operated through the SPSS 21 program. The results of this research show that partially information sharing and cooperation have a significant effect on supply chain management performance. Simultaneous testing shows that information sharing and cooperation have a significant effect on supply chain management performance.

O-175 Ethical practices and policies for ART carbon reduction

Abstract Background The carbon emissions of global health care activities make up 4-5% of total world emissions, placing the health care industry on par with the food sector. Health care contributes to climate change and climate change health hazards. Safe amounts of carbon in the atmosphere have been exceeded—in part because of medical lifestyles in the industrialized world. A significant proportion of health care carbon comes from pharmaceuticals and clinical services in the developed world, including reproductive technologies. Since 1978, approximately 12 million babies have been born through IVF alone. Problem statement Reproductive technologies have an exceptional impact on the environment as they 1. expend carbon in the medical process, 2. increase population growth in mostly high-carbon countries, 3. impact earth’s carrying capacity, and 4. create a carbon legacy. This would not necessarily be ethically problematic, but in a climate crisis carbon emissions must be reduced in all areas of life. Objectives This presentation by an ethicist (PhD) will: 1. Highlight aspects of environmental ethics for reproductive technologies 2. Offer practices and policies to make reproductive technologies more sustainable. Takeaways • Prevention of infertility fits within basic health care. • Carbon emissions from reproductive technologies can be reduced by life cycle assessments (LCA) of the procedures and components. • Clinical evidence can inform ethical policies to reduce the number and kind of reproductive technologies, thereby lowering fertility industry carbon emissions. • New scientific and technological developments in reproduction must consider sustainability proactively, not reactively, thus putting ethics in the pipeline of reproductive medicine. Further Reading Bhopal A, and Norheim O. Priority setting and net zero healthcare: how much health can a tonne of carbon buy?. BMJ 2021; 375:e067199. Pichler, P.-P. et al., “International Comparison of Health Care Carbon Footprints,” Environmental Research Letters 14, no. 6 (2019): 064004. Richie, Cristina. Environmental Ethics and Medical Reproduction (Oxford University Press, 2024.

Analisis Pendapatan Dan Kelayakan Usaha Pada Pabrik Tahu Sumber Rejeki Kelurahan Wae Kelambu, Kecamatan Komodo Kabupaten Manggarai Barat

Along with increasing population growth, there are also more and more businesses in the field of food processing because food is the main human need. One of the food products that are well known among the public is tofu. Tofu is one of the staple foods in Indonesia. A business feasibility study is a study about whether or not a business is carried out profitably on an ongoing basis. Tofu agroindustry Sumber Rejeki is a soybean processing industry into tofu. The Sumber Rejeki tofu agroindustry is located in Nggorang, Komodo District, West Manggarai Regency. A business that is run certainly requires a proper planning and calculation. The purpose of this study was to determine the cost, income and business feasibility of the tofu source of fortune agroindustry in Nggorang, Komodo District, West Manggarai Regency. The analysis used in this research is the analysis of Costs and Revenues, R/C Ratio, Net Present Value (NPV), and Internal Rate Of Return (IRR). The results showed that the Sumber Rejeki tofu business in Nggorang Komodo District, West Manggarai Regency obtained a profit with a value of TC > TR or Rp. 216,000,000 > Rp. 111,636,607, while the results of the feasibility analysis of Sumber Rejeki's tofu business in Ngorang, Komodo Subdistrict, West Manggarai Regency were feasible to use. R/C Ratio > 1 or R/C Ratio = 1.75 > 1, NPV > 0 or NPV = 753.727.492 > 0, IRR > i or IRR = 80.9 % > 4.27%. That means that the Sumber Rejeki tofu business in Nggorang, Komodo District, West Manggarai Regency is profitabel and worth working on.

The Growth of the Cameroonian Public Sector: An Analysis from Adolph Wagner's Approach

Purpose: This article sheds light on the determining factors accountable for the growth of the Cameroonian public sector from Adolph Wagner's Perspective. Methodology: To realize the objective, data were obtained through documentary and secondary sources, such as the World Bank Reports and other relevant documents. Information obtained was contently analysed, while numeric information was presented in percentages and tables. Findings: Using Adolph Wagner's Approach, findings showed that the size of the Cameroon public service has grown in size due to political, economic and social determinants. Politically, it has increased due to political instability and voter maximization behaviours by politicians; economically, it is due to the demand for public and merit goods, the fight against unemployment, and the government's regulatory role in the economy. Socially, it is accounted for by increasing population growth and demand for social services. Unique Contribution to Theory, Practice and Policy: This article from the Theoretical Standpoint of Adolph Wagner's perspective has resolved that the size of the Cameroonian public service has increased in size over the years as a result of political and socio-economic undertones, which to a greater extent has not been efficient service delivery. It is from this perspective that it is highly recommended that, there is an urgent need for accountability and responsiveness to be imbibed into the Cameroon public to ensure efficient delivery of goods and services to the public.

Childhood vaccinations and the demand for children: Long-term evidence from India

Childhood vaccinations can increase population growth in the short term by improving the survival rates of young children. Over the long run, reductions in child mortality rates are associated with lower demand for children and lower fertility rates (known as “demographic transition”). Vaccination programs could potentially aid demographic transition by lowering child mortality and improving future health, schooling, and labor market outcomes of vaccinated mothers, but these long-term demographic benefits remain untested. We address this major gap in the literature by examining the associations of India’s national childhood vaccination program (the Universal Immunization Programme or UIP) with future demand for children. We combine data on the district-wise rollout of UIP during 1985–1990 with fertility preference data of 625,000 adult women from the National Family Health Survey of India 2015–2016. We include women who were born five years before and after the rollout period (1980–1995) and were cohabiting with a partner at the time of the survey. We divide these 20–36-year-old women into two groups: those who were exposed to UIP at birth (treatment group) and those who were born before the program (control group). After controlling for individual- and household-level factors and age and district fixed effects, treatment group women are 2% less likely to have at least one child and want 2% fewer children in their lifetime as compared with the control group. The negative associations with at least one childbirth are larger for more educated and richer women, while the associations with desired number of children is larger for uneducated and poorer women.

Evaluation of the Contribution of Bayburt Tuffite (Bayburt Stone) Dust to the After Freeze-Thaw Strength Values of High Plasticity Clay Soils

The strength properties of soils that are considered problematic, such as high plasticity clay, need to be improved for the increasing housing needs in parallel with the increasing population growth and the evolving needs of society due to continuous technological developments. In the last twenties, when global climate changes began to occur, improving the geotechnical properties of such soils, which form the basis of engineering structures, has become an important issue. For this reason, many studies have begun to improve and strengthen such soils using natural, synthetic, or various chemicals. For this reason, natural rocks are one step ahead of other healing materials in terms of being economical, sustainable, and environmentally friendly. In our study, Bayburt tuffite was added to the clayey soil by pulverizing it at the rates of 5%, 10%, and 15%, and the strength change after freezing and thawing was examined. Clay soil (CS) + Bayburt tuffite powder (BTP) mixture samples obtained in three different ratios were wrapped with stretch wrap in the laboratory environment (+20oC) and cured for 7, 14, and 28 days, ensuring the opt. moisture content was maintained. At the end of the curing period, the samples were subjected to +20oC, -20oC, 12 hours, and 10 cycles in the freeze-thaw cabinet, and then, Strength values were acquired with a uniaxial testing device. The highest strength value after freezing-thawing; was observed that it was 29.55% in the MIX1 (CS + 5% BTP) mixture cured for 28 days. As a result, it was concluded that this mixing ratio can be used in cold climates and shallow foundation depths with high plasticity clay soil properties.

Preface

This significant increase in population has caused food availability in the world. Food is to become increasingly limited and it is not surprising that the world will experience a food crisis. There are many things that cause a food crisis, including increasing population growth, environmental damage, land conversion and a decline in the quality of agricultural land, changes in consumption patterns. The mindset of farmers which is completely practical and not in accordance with market predictions as well as the conversion of agricultural land into residential and industrial areas are several factors for the occurrence of a food crisis in the future. Efforts to fulfill food needs have been made by the government. Starting with the green revolution. It was used as a way to increase food production. Then continued with the blue revolution in order to meet human needs, especially the need for protein originating from fish. Apart from the two efforts above, efforts continue to be made to search for superior seeds, which is one of the efforts to increase agricultural production, using genetic engineering technology. Based on this, Faculty of Animal and Agricultural Sciences, Universitas Diponegoro would like to address issues around resilience of the agricultural sector in the global food crisis. It is our hope that the results from this seminar may form the basis for the decisions that policy makers and other stakeholders need to consider to improve food sovereignty in global world system. This seminar also places to discuss the solutions on achieving resilience of agricultural sector in the global food crisis. Therefore, on behalf Universitas Diponegoro, we believe that this conference will be a good place to share recent discoveries in the respective fields, to build partnership, so that we can move closer to answer the world feeding challenge, together. We would like to congratulate the committee for a job well done preparing this seminar. Special gratitude goes to keynote speakers, all participants, and all other parties supported this event. List of Committee and Participants of the 6th International Seminar on Agribusiness are available in this Pdf.

PENYEIMBANGAN BEBAN TRANSFORMATOR DISTRIBUSI PCC-007 UNTUK MENGURANGI RUGI-RUGI JARINGAN PADA TEGANGAN MENENGAH 20KV

The distribution system of electrical power networks serves as a means to distribute electrical energy to both industrial and household consumers. With the increasing population growth, the number of electrical energy users or consumers also increases, potentially impacting the loading on each distribution transformer. If the loading on each transformer increases, it can lead to overload, load imbalance, power losses, and damage to the transformer. Therefore, to ensure the proper operation of distribution transformers, PLN (a state-owned electricity company in Indonesia) has set a standard for the loading on distribution transformers, which should not exceed 80%. This research aims to measure the loading on distribution transformers and analyze the occurrence of power losses caused by load imbalance. Measurements are conducted using a clamp meter and earth tester to obtain current and voltage values as well as the resistance value of grounding. Subsequently, calculations are performed for transformer loading, load imbalance, and power losses on the feeder.

Population growth in growing and declining cities: the role of balanced-budget increases in local government spending

Tiebout sorting describes people moving to communities that most closely match people's preferences over taxes and public services. This Tiebout equilibrium is disturbed when cities vote to increase taxes and spending. We study the effect of increased taxes and public spending on population growth in growing and declining cities. Using regression discontinuity to compare otherwise similar cities, we find increasing local government taxes and spending by 15% can increase population growth rates. The increase is only evident the year after the vote. For the general sample, the increase is 0.4 percentage points, but it is 0.8 percentage points (25% of a standard deviation) for growing cities with below-median percentages of elderly residents. In cities with declining population, passing large tax levies increases population growth rates by 0.9 percentage points the year after the vote—33% of a standard deviation. Instead of cutting taxes and services, cities with declining population might instead consider providing additional public services to stem population declines. Most migration studies use a fairly large geographical unit like states, counties, and urban areas; our study contributes to the literature by studying migration at the local government level (cities, villages, and townships).