نشریه اقتصاد و برنامه ریزی شهری
سال یکم شماره 2 (تابستان 1399)

In this research, the economic valuation of Qeytariye Park was carried out using the hedonic method. For this purpose, 19 variables that can be classified into three general categories of physical variables, neighborhood variables, and environmental variables are considered, and 41 residential units are selected as an example in the effective radius around this park and were reviewed according to the variables mentioned. The results obtained from these observations were analyzed in Eviews 10 software and a regression model was estimated using the ordinary least squares or OLS method. 7 variables out of 19 considered variables had a coefficient value under 0.05 or %5: The flat area, the age of the apartment, the total number of units, the existence of parking lots, the distance from amusement park/centers, the distance from the closest grocery stores, and the distance from Qey-tarieh Park. The existence of parking lots among physical variables and the distance from Qeytarieh Park among neighborhood variables had the highest coefficient values of respectively 0.66 and 0.26. Among the purposeful variables, the flat area, the total number of units and the existence of parking lots had a direct relation with the dependent variable; and the age of the apartment, the distance from recreational centers, the distance from the closest grocery stores, and the distance from Qeytarieh Park had an indirect relation with the residential units’ prices. ©2020 Urban Economy. All rights reserved.

In organizations like ‘The organization Registration of Documents and Estate’ that users need update and precise Information of varieties of land properties, traditional surveying cannot meet the today’s needs. This research with the aim of assessing and comparing land surveying method by using of UAV photogrammetry has done. For this purpose, imaging by UAV Phantom4 pro V2 from residential context in the height of 80 meter, with the length and width of 80% designed and then coordinates’ determination of land surveying control points including 12 points (6 control points and 6 check points) by the GNSS/RTK rover, which has done with the help of Shamim Network. Triangulation and photogrammetry computation in Agisoft (photoScan) environment and transformation operation and coordinates’ determination of properties vertex (map preparation) is done. Length of the property sides achieved by UAV photogrammetry method along with deeds lengths are extracted from Comprehensive Cadastral Database and compared in terms of precision, time and cost and the results show that the use of UAV photogrammetry method not only has a good precision and low amount of error for control points (RMSE: X=3.51,Y=4.94, Z=0.60cm) and check points (RMSE: X=3.87 ,Y=5.75 Z=2.38cm) but also are suitable for preparation of 1:500 map. Additionally, according to the achieved results the cost of UAV photogrammetry is 25% of land determination coordinates and the time devoted to UAV photogrammetry is 31% of the time of land determination coordinates. Therefore, UAV photogrammetry method in terms of cost and time is also cost effective.

The metropolis of Tehran is one of the largest centers of businesses in the country. Despite the importance of these units in economic growth and development, job creation and ultimately improving and increasing the welfare of citizens, not only the position of these units in the economic system remains limited and without a clear definition, but also in related documents there is not a comprehensive approach about that. On the other hand, the legislature at the national level; By drafting and approving laws and regulations point to the need to improve the business environment in order to develop small businesses. Accordingly, changing macroeconomic approaches and increasing the tendency to develop small businesses in the country, requires a new ,knowledge-based, approach relies on increasing the connections and interactions of business units with government institutions. In this study, by examining the internal and external factors affecting the issue of business development in Tehran, the trends and uncertainties of the identified issue have been identified, which ultimately led to the presentation of four scenarios. Studies have shown that each of the scenarios is possible based on the current situation in the country, and therefore it is not possible to predict on the future of small businesses. But by presenting strategies that are feasible in all scenarios, decisions can be made to improve the business environment in Tehran.

Housing is one of the basic needs of the human being. Considering how to provide housing, housing quality, affordable and affordable housing for all segments of society is one of the most important goals of a variety of urban programs and is considered as a serious discussion of the quality of life approach. Of the various types of housing patterns, there is a pattern of retrofitting that has been seriously addressed in the urban management agenda in recent decades, and if it does not plan and manage its effects, it can overwhelm the quality of life of the inhabitants. The purpose of this study is to study the relationship between quality of life and compression patterns of vertical housing development and evaluate the effects of density on the dimensions, benchmarks and indicators of quality of life in District 3, region 22 of Tehran. The present study is descriptive-analytical in terms of purpose, application and method. Descriptive statistics, one-sample t-test and Spearman correlation in SPSS software were used to achieve the goals and answer the questions. The results show that the quality in the low density pattern with an average of 3.26 compared to other patterns is acceptable. One of the most important results of Spearman test was the correlation of density component with negative quality of life (r = -0.83) and it was proved that with increasing density, quality of life decreases.

Rising housing prices have become one of the critical problems in the metropolis of Tehran over the last decade. Therefore, it is necessary to study the changes in prices and the status of the indicators of this sector in order to analyze and select the solutions to this problem. The purpose of this study is to investigate the changes in housing indicators in the metropolis of Tehran during the period 2009 to 2019 Documentary methods was used for data collection. The research approach is descriptive-analytical and the indicators used have been extracted and analyzed from official national statistics over a decade (2009-2019). Descriptive and inferential statistics methods were used to perform the analyzes. Calculation of Pearson correlation coefficient showed that there is a correlation between housing sector indicators and general inflation rate, in which there was a high correlation between price per square meter of land and inflation. The findings of this study show that the sharp rise in prices began in 2013 and peaked in 2019. As a result, numerous reasons, including international sanctions, the lack of appropriate policies, have exacerbated the housing problem. Finally As a result, a number of factors, including international sanctions and a lack of appropriate policies, have exacerbated the housing crisis.

In this study, inflation and time value has been taken into account for the economical investigation of the period of return on investment in replacing natural gas water heaters in Tehran residential buildings. First economic analysis was calculated considering all replacing cost by the residents. Second, the calculation was done if the government through the Ministry of Energy pays for all replacing cost. After reviewing of various strategic of replacing natural gas boilers with solar water heaters considering the importance of economic and environmental subjects, replacing by citizens because of the financial problems and a long period of return on investment (12 years) is impossible. On the other hand due to reduction of air pollution and greenhouse gas emissions, especially CO2, and the country's ability to exporting natural gas to neighboring countries, the strategy of subsidize of replacing by the Ministry of Energy has a return on investment (in first year) is much more reasonable.