Integrated sustainability policy assessment – an agent-based ecological-economic model

The paper proposes an agent-based evolutionary ecological-economic model that captures the link between the economy and the ecosystem in a more inclusive way than standard economic optimization models do. We argue that an evolutionary approach is required to understand the integrated dynamics of both systems, i.e. micro–macro feedbacks. In the paper, we illustrate that claim by analyzing the non-triviality of finding a sustainability policy mix as a use case for such a coupled system. The model has three characteristics distinguishing it from traditional environmental and resource economic models: (1) it implements a multi-dimensional link between the economic and the ecological system, considering side effects of production, and thus combines the analyses of environmental and resource economics; (2) following literature from biology, it uses a discrete time approach for the biological resource allowing for the whole range of stability regimes instead of artificially stabilizing the system, and (3) it links this resource system to an evolving, agent-based economy (on the basis of a Nelson-Winter model) with bounded rational decision makers instead of the standard optimization model. The policy case illustrates the relevance of the proposed integrated assessment as it delivers some surprising results on the effects of combined and consecutively introduced policies that would go unnoticed in standard models.

The circular economy model as a promising path towards regional ecological and economic balance

The article presents the results of an analysis of the possibilities for the transition of the region’s economy to a circular economic model. According to the aim of this article the main economic activities and tools for making such a transition in Kamchatka Territory have been identified. The principles of the circular economy and its advantages over the traditional “linear” model have been analysed. On the example of the Kamchatka Territory, the preconditions and prospects for the region’s transition to a circular economy model in terms of the existing structure of production of goods and services have been analysed. Using MS Excel tools, the structure of the gross regional product has been analysed, according to the results of which the main economic activities that are promising for the transition to a circular model have been identified. Regional indicators for waste recycling and neutralisation have been analysed, and chain coefficients have been calculated for growth in the share of recycled and neutralised waste for Russia as a whole, for the Far Eastern Federal District and Kamchatka Territory. Based on the results of the calculation, it has been concluded that the coefficient values for the Kamchatka Territory lag behind those for the whole of Russia and the Far Eastern Federal District. A number of financial and economic, technological, legal and informational tools have been identified, the use of which makes it possible to implement the transition to a circular economic model. Fisheries, energy, tourism, recycling and waste management have been identified as the most promising economic activities for such a transition. The findings conclude that it is important to continue research into the various aspects of the transition to a circular economy, as well as continued coordinated efforts are needed to implement it.

Optimization of hydraulic fracturing treatment in tight sand reservoir of lower indus basin: an integrated approach

An approach for post-frac production profiling has been presented in this study by integrating a fracture model with a reservoir simulation model for a well drilled in tight sand reservoir of Lower Indus Basin in Pakistan. The presented integrated approach couples the output from the fracture growth model with a reservoir simulation model to effectively predict the behavior of a fractured reservoir. Optimization of hydraulic fracturing was done efficiently through the work presented in this study. The integrated model was used to perform various sensitivities. The production profiles obtained for each case were subsequently used to determine the most profitable case, using an economic model.

Information Security Management of Sharing Economy Based on Blockchain Technology

Based on the unprecedented development of current information technology, under the prevalence of third-party payment, in order to increase the utilization rate of idle resources and meet the diversified economic needs of today’s era, as an emerging economic model-the “sharing economy”, combined with Internet big data, it has effectively realized the perfect connection between supply and demand, and it has quickly swept through all walks of life. However, while promoting economic development, the lack of regulatory measures and the imperfect credit system have severely restricted the further development of the sharing economy. Blockchain technology (BT), as a new distributed infrastructure and computing method, has always been the core technology of Bitcoin. Based on the development of generalized economic model and BT, this paper analyzes the shortcomings of generalized economic model and blockchain technology through information fusion big data and proposes a kind of information based on information fusion big data+public BT. The security management system adapts to the status quo of the sharing economy and uses the functions of information fusion big data+blockchain technology to solve the current information security risks faced by the sharing economy. The experimental results of this article show that the sharing economy information security management system based on information fusion big data+blockchain technology has good protection capabilities. The interception rate of external information reached 95%, and the interception rate of system information reached 93%. Better protection of privacy leaks is needed.

AUTOMATED COMPLEX OF ECONOMIC EFFICIENCY OF PROJECTS

This is how the software package for system-dynamic optimization of the economic efficiency of projects is described: software for calculating the intensity and determining the composition of traffic from a video image; a financial and economic model for a comprehensive analysis of roadside service facilities, which, based on the input of initial data, predicts the results of the financial and economic activity of the object and allows evaluating the feasibility of investments in construction/reconstruction/modernization, and also allows evaluating the maximum possible amount of investment; a technical solution for collecting video analytics.