The subscription economy is entering one of its most transformative periods yet, as 2026 really gets underway.

On St. Patrick’s Day, as 2 million spectators flood the streets of New York City, USA₮, a digital dollar issued by Anchorage Digital Bank, is taking over Times Square. The brand activation combines ...

👉 Learn how to evaluate a piecewise function. A piecewise function is a function which uses different rules for different intervals. When evaluating a piecewise function, pay attention to the ...

Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of ...

Utilities are useful tools to perform arbitrary actions. Furthermore, it is possible to create the solver to your specific problems and avoid using the builder and solver, for example to create a new ...

Although the utility industry is the backbone of any economy, it lags in adopting the latest technologies. This is evidenced by the fact that utilities are underperforming in customer satisfaction and ...

1 School of Statistics, Beijing Normal University, Beijing, China. 2 College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing, China. 3 Department of Economics, ...

This note elaborates Suppes’ (1977, Erkenntnis Vol. 11, No. 1, pp 233-250) derivation of the logarithmic function as a consumer’s cardinal utility function on money income levels, in which the ...