Traditional methods of calculating the value of Pi are approximate. This article demonstrates that there is an accurate method for calculating its value to 16 significant digits based on the performance of a computer program in Turbo C 2.0 including formulas resulting from the combination of...

We examine the effects of incorporating a potential tax on carbon emissions into a value investment strategy. We show that in a portfolio optimization problem, a carbon tax at the stock level is mathematically equivalent to a carbon constraint at the portfolio level. Using this insight we derive...

Cancellation of the events offered by cultural institutions was caused by the restrictions introduced by the government and, at a critical moment, a national lockdown. The COVID-19 pandemic forced cultural institutions to adapt to the new reality. The aim of this article was to present the...