A utility function measures a consumer’s preference and satisfaction with different goods or services. As part of rational choice theory, it helps economists analyze how consumers make decisions to ...

Andrew Bloomenthal has 20+ years of editorial experience as a financial journalist and as a financial services marketing writer. Erika Rasure is globally-recognized as a leading consumer economics ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Erika Rasure is globally-recognized as a leading consumer economics subject ...

Learn how to quickly calculate Year-to-Date (YTD) values in Excel using Pivot Tables — a simple trick that saves time and ...

Are you a low, medium or high user of gas and electricity? Estimated energy use figures How to find your actual energy usage figures How to work out the running cost of appliances The energy price cap ...

This is a Java class that allows reading data from an Excel (.xlsx) file. It provides methods for getting the row count and cell data of a specific sheet. The class uses the Apache POI library for ...