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The paper presents the results of the authors' research on the share of energy costs in revenues and their impact on the profitability of companies. This research was inspired by a large increase in energy prices in 2022. The authors analyzed the shares of energy consumption costs in production companies from various industries, using various sources: scientific literature, expert studies, and statistical data. Based on the results of these analyses, the authors simulated the impact of changes in energy prices on the profitability of companies. The research results are as follows: according to the authors, the share of these costs in the value of sales is much lower (several percent) than presented in various literature sources (a dozen or so, and even up to 30% in some cases). Despite this, however, the change in energy prices should significantly reduce profitability according to the simulations conducted by the authors. However, the financial reports analyzed by the authors show that profitability in many cases not only did not deteriorate, but revenues and profits increased in a large number of companies. In many cases, this can be explained by the actions taken by companies to reduce energy consumption costs and by increases in product prices. The authors' research also shows that if factors such as the specificity of the industry or the size of the company have an impact on energy efficiency, it is only to a small extent. The share of energy costs in sales and financial results, even within a given industry and in companies of similar size, varies greatly. The authors therefore believe that the effectiveness of the management of a given company has the greatest impact. Therefore, the results of the analysis differ significantly from the results of studies presented in the literature. Energy consumption data were analyzed using various literature sources from different countries. However, the main analyses conducted by the authors focused on Poland. [ABSTRACT FROM AUTHOR]

The paper presents the problem of the impact of the competitiveness of maritime transport on the efficiency of global supply chains on the example of the apparel industry. With the use of a model developed by the authors, simulations of the profitability of the sourcing in low-costs countries (Bangladesh, China) have been conducted. The model takes into account the specificity of the apparel industry, parameters of cargo, value of goods, and demand characteristics. If freight rates for maritime transport services were to increase significantly, the profitability of production in the Far East compared to local or regional production would be lower particularly for cheaper products. The level of these freight rates is not the main factor of the efficiency of this strategy. Simulations revealed, that changes of costs of production has greater impact on this profitability. In the garment market the possibility of quick response to demand is often more important than costs. The calculations were made on the basis of data obtained from Polish companies, which order production in countries with low production costs and transport garment in containers by sea and from transport and logistics operators.

This paper discusses logistics models of e-commerce implemented by Polish clothing companies. The author has conducted research on Polish clothing companies and logistics operators serving e-commerce branches, and here presents and compares these models. There are various logistics models of e-commerce, which differ from each other in organisation of deliveries, level of outsourcing, location for keeping stocks, level of logistics in customer service, and organisation of returns (goods returned by customers). The impact of the different e-commerce models on ecological, economic, and social priorities is then discussed. [ABSTRACT FROM AUTHOR]