Sustainable urban development has come to play an essential role in establishing and growing future sustainable cities, or smart cities, which are urban areas that have an optimum carbon footprint, are nature-friendly, and are smart enough to enhance energy efficiency. This study is based on qualitative research in which data were collected from interviews with real estate development specialists. The interviews were addressed to a total of 30 real estate developers from Romania between July and December 2022 and were conducted using the Zoom interface. The aim of this research was to analyze whether familiarity with the smart green concept influences the decision to implement the IoT on a large scale at the organizational level through the perception of specific determining factors in choosing the development of green building projects considering the operational costs. The results revealed a significant indirect effect of green building knowledge on large-scale IoT implementation through the mediator of the perception of operating cost factors, supporting our hypothesis. The direct effect in the presence of the mediator was not found to be significant anymore. Hence, there is full complementary mediation by the perception of operating cost factors on the relationship between green building knowledge and large-scale IoT implementation.

In order to determine some specific economic characteristics that are associated to the size of the companies that are listed and traded on the Bucharest Stock Exchange, it is necessary to classify the companies based on the market capitalization, liquidity and the traded volumes. This paper aims to make a comparative study among the parameters of the classes obtained by a break up into disjunctive classes and a break up using a fuzzy model.

The aim of this paper is to highlight the need for financial education among adults in Romania. For this purpose, we will take as a starting point the current level of financial knowledge that the target group possesses. The research's central hypothesis is the relationship between our nation's educational level and the current economic and financial predicament. Therefore, the traditional questionnaire will serve as the primary research method for this study. The information obtained from the questionnaire will be related to statistical data concerning the financial field in Romania, with the main result being the dimension of the impact of the educational element in the financial life of Romanians.