The presence and spread of invasive tree species have caused great ecological and economic damages. Previous studies usually ignored the role of socioeconomic factors and seldom treated presence and abundance as different phenomena. Using Classification and Regression Trees (CART) analysis, important driving factors affecting the presence and abundance of invasive tree species in Mississippi were identified. Then these selected important factors were spatially analyzed using a spatial lag model at the plot and county levels. The empirical results from the spatial lag model showed that: 1) presence was associated with elevation, ownership, population density and per capita annual income; 2) abundance was related to stand age, elevation, growing stock and per capita annual income. These findings suggested that socioeconomic factors besides ecological factors played a significant role and factors affecting the presence and abundance were different. Thus, management prescriptions to monitor and control invasions should depend on difference factors.

Housing is a fundamental human need and shapes our everyday lives. People take great care to choosea home that meets their needs through various amenities and attributes, striving to maximize theirutility given their budget. One amenity that is often overlooked is what the building looks like.Research indicates that people prefer classical homes, but very few are being built in classical stylesnowadays. This study utilizes a hedonic price model to explore whether neo-traditional architecturecarries a price premium in Stockholm municipality. It focuses on apartments in multi-family houses,analysing a total of 16,508 observations. A hedonic price model is utilized, with seven OLS modelsrun in RStudio, including a spatial lag model. The findings suggest a price premium of 10.5% with theregular model and 5.8% with the spatial lag model. The study concludes that neo-traditionalarchitecture has a significant effect on apartment prices in Stockholm municipality. / Boende är ett grundläggande mänskligt behov och formar våra vardagsliv. Människor lägger storomsorg på att välja ett hem som uppfyller deras behov genom olika bekvämligheter och egenskaper,och strävar efter att maximera sin nytta inom sin budget. En bekvämlighet som ofta förbises är hurbyggnaden ser ut. Forskning visar att människor föredrar klassiska hem, men väldigt få byggs iklassisk stil nuförtiden. Denna studie använder en hedonisk prismodell för att undersöka om ny-traditionell arkitektur har en prispremie i Stockholms Stad. Den fokuserar på lägenheter i flerfamiljshus och analyserar totalt 16 508 observationer. En hedonisk prismodell används, med sjuOLS-modeller körda i RStudio, inklusive en spatial-lag modell. Resultaten tyder på en prispremie på10,5% med den vanliga modellen och 5,8% med den spatiala fördröjningsmodellen. Studien drarslutsatsen att ny-traditionell arkitektur har en betydande effekt på lägenhetspriserna i Stockholmsstad.

Housing is a fundamental human need and shapes our everyday lives. People take great care to choosea home that meets their needs through various amenities and attributes, striving to maximize theirutility given their budget. One amenity that is often overlooked is what the building looks like.Research indicates that people prefer classical homes, but very few are being built in classical stylesnowadays. This study utilizes a hedonic price model to explore whether neo-traditional architecturecarries a price premium in Stockholm municipality. It focuses on apartments in multi-family houses,analysing a total of 16,508 observations. A hedonic price model is utilized, with seven OLS modelsrun in RStudio, including a spatial lag model. The findings suggest a price premium of 10.5% with theregular model and 5.8% with the spatial lag model. The study concludes that neo-traditionalarchitecture has a significant effect on apartment prices in Stockholm municipality. / Boende är ett grundläggande mänskligt behov och formar våra vardagsliv. Människor lägger storomsorg på att välja ett hem som uppfyller deras behov genom olika bekvämligheter och egenskaper,och strävar efter att maximera sin nytta inom sin budget. En bekvämlighet som ofta förbises är hurbyggnaden ser ut. Forskning visar att människor föredrar klassiska hem, men väldigt få byggs iklassisk stil nuförtiden. Denna studie använder en hedonisk prismodell för att undersöka om ny-traditionell arkitektur har en prispremie i Stockholms Stad. Den fokuserar på lägenheter i flerfamiljshus och analyserar totalt 16 508 observationer. En hedonisk prismodell används, med sjuOLS-modeller körda i RStudio, inklusive en spatial-lag modell. Resultaten tyder på en prispremie på10,5% med den vanliga modellen och 5,8% med den spatiala fördröjningsmodellen. Studien drarslutsatsen att ny-traditionell arkitektur har en betydande effekt på lägenhetspriserna i Stockholmsstad.

No description available.

No description available.

<p>Land use planning has gained popularity as a travel demand management strategy for the last two decades. Many urban authorities in North America have adopted smart growth policies in order to curb auto use and promote sustainable forms of travel, namely, public transit, bicycle and walking. The purpose of this study is to examine whether someone’s travel behavior is influenced by the characteristics of the built environment where one lives and works. The study area is Halifax Regional Municipality, Nova Scotia, Canada. Two aspects of travel are analyzed for a weekday: total distance travelled by auto and average tour complexity. Separate models are developed for worker and non-worker by applying ordinary least square and spatial lag modeling techniques. The built environment variables are measured near home and workplace and at different geographical scales. The average auto distance and tour complexity are separately regressed against the built environment variables while personal characteristics, household attributes, preferences for residential location and transport mode, and meteorological conditions of survey days are accounted for. The results of auto distance models suggest that people living and working in high accessibility areas with mixed land uses make shorter travel by auto, which supports the claims of smart growth proponents. The built environment variables make significant contribution to the fitness of auto distance models. In case of tour complexity models, built environment variables also appear to be significant but with lower contribution to model <em>R²</em>. The results suggest that non-workers, who live in poor accessibility areas, make more complex tours. Workers living in poorly accessible neighborhoods and working in highly accessible areas make complex commuting and work-based, non-work tours. It means that, workers compensate poor neighborhood accessibility by trip chaining near workplace. The findings would be helpful to evaluate the existing growth strategies in Halifax Regional Municipality. In addition, it makes several contributions to the literature.</p> / Master of Arts (MA)

This paper analyzes if neighborhood income inequality has an effect on informal regulation of environmental quality, using census tract - level data on industrial air pollution exposure from EPA's Risk Screening Environmental Indicators and income and demographic variables from the American Community Survey and EPA's Smart Location Database. Estimating a spatial lag model and controlling for formal regulation at the states level, we nd evidence that overall neighborhood inequality - as measured by the ratio between the fourth and the second income quintile or the neighborhood Gini coefficient - increases local air pollution exposure, whereas a concentration of top incomes reduces local exposure. The positive coefficient of the general inequality measure is driven by urban neighborhoods, whereas the negative coefficient of top incomes is stronger in rural areas. We explain these findings by two contradicting effects of inequality: On the one hand, overall inequality reduces collective action and thus the organizing capacities for environmental improvements. On the other hand, a concentration of income at the top enhances the ability of rich residents to negotiate with regulators or polluting plants in their vicinity. / Series: Ecological Economic Papers

No description available.

No description available.

No description available.