Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J Catalano is a CFP and Registered ...

CEO Sam Altman called a strange graph in its GPT-5 presentation a ‘mega chart screwup.’ CEO Sam Altman called a strange graph in its GPT-5 presentation a ‘mega chart screwup.’ is a senior reporter ...

The political underpinnings of mainstream microeconomics are examined by drawing on findings from the history of economic thought. By evaluating foundational concepts and notions, such as perfect ...

I’m assuming a lot of us have stood in the cafeteria line, bubbling with anxiety, and our stomach and confidence levels both feeling empty. Hopefully, I’m not alone in this. But, if I am, let me help ...

Covid-19 broke the charts. Decades from now, the pandemic will be visible in the historical data of nearly anything measurable today: an unmistakable spike, dip or jolt that officially began for ...

Microeconomics and macroeconomics are two distinct branches of economics. Microeconomics focuses on individuals and groups, including companies, while macroeconomics looks at the behavior of national ...

Abstract: This paper considers online reputation and polling systems where individuals make recommendations based on their private observations and recommendations of friends. Such interaction of ...

The second edition (2020) is freely available as an open educational resource. MicroExcel.pdf (8MB) Click to download and open with a pdf reader. The second edition has additional content and updated ...