Environmental costs estimation and mathematical model of marginal social cost: A case study of coal power plants

The purpose of this article is to analyze the effect that halving has on the fair market value of bitcoins. The main hypothesis of the study is that the decline in the cost of miners’ remuneration for mining is a significant factor that affects the price of cryptocurrencies. The article examines the factors that regulate the issuing process. The significance of a limited supply of bitcoin is detailed in the article, as well as the mechanism for the implementation of the issue of new bitcoins. The study compares the historical inflation data of the US dollar and the projected data on the inflation of bitcoin. The article analyzes the main technical element of cryptocurrency – halving – when the miner’s reward is halved. This analysis includes the mathematical methods of statistical data processing. Research results show that reducing remuneration by half every four years leads to an increased market value of the cryptocurrency. This relationship is clearly illustrated by the Kendall rank correlation method. The results of the study can have a significant impact on the fundamental assessment of bitcoin and can also enable investors to assess any of the existing and operating cryptocurrencies according to this method.

From a global perspective, the business environment has become highly dynamic, unpredictable, and competitive due to external forces – mostly technology – that generate change. The aim of this study is to investigate the influence of digital technologies on South African business sectors. The sample includes small and medium enterprises (SMEs) in the KwaZulu-Natal province. Being qualitative by design, the study used semi-structured interviews for data collection, with eight interviews in the Durban area. SME managers were purposefully selected as participants based on their management positions in the business/company and that they oversee the business operation and understand the influence of digital transformation in the business. The interviews were then transcribed after data collection to determine any recurring themes. In the effectiveness of digital transformation, the study identified themes such as “gaining exposure” and “gaining effective sales figures” as a result of implementing digital transformation, which was indicated by six of eight participants. The findings showed that digital transformation significantly affects building customer relationships and ensuring easy accessibility of the business. The results further indicate online selling and digital marketing as the leading digital platforms successfully implemented by most South African SMEs. Lastly, the study revealed digital maintenance and rapid changes in technology as challenging factors. Moreover, the study recommends that South African SMEs implement more available digital technologies to gain additional exposure.

In order to ensure profitability for shareholders, optimal contracting recommends the alignment between executive compensation and company performance. Large organizations have therefore adopted executives remuneration systems in order to induce positive market reaction and motivate executives. Complex compensation schemes are designed by Boards of Directors using strong pay-performance incentives that explain high levels of executive pay along with company size, demand for management skills and executive influence. However, the literature remains inconclusive on the pay-performance relationship owing to the various empirical methods used by researchers. Additionally, there has been little effort in the literature to compare methodologies on the pay-performance relationship.
Using the dominant agency theory framework, the purpose of this study is to establish and examine the relationship between firm performance and executive pay. In addition, it intends to assess the characteristic of model specifications commonly adopted. To this aim, a quantitative analysis consisting of three complementary methods was performed on panel data from South African listed companies. The results of the main unrestricted first difference model indicate a strong non-linear relationship where the impact of current and previous firm performance on executive pay can be observed over 2 to 4-year period providing support to the optimal contracting theoretical perspective in the South African business context. In addition, CEO pay is more sensitive to firm performance as compared to Director pay. Lastly, although it affects executive pay levels, company size is not found to improve the pay-performance relationship.