How to Calculate IRR With Initial Outlay and Single Cash Flow

Suppose you have the opportunity to invest in a project that will require a $100 investment today and pay out a single cash flow of $250 in year ...
Tobacco Control

Digital footprints of the US e-cigarette market: correlations among retail sales data, social media activity and Google search trends

Introduction The global market for electronic cigarettes (e-cigarettes) has been changing rapidly. There is limited research ...
The Pricer

How Much Does It Cost to Scramble NATO Jets?

Scrambling jets is fast, loud, and expensive. This piece shows the math behind a scramble: fighter hours set the floor, ...
How-To Geek on MSN

A Step-by-Step Guide to Using SUMIFS in Microsoft Excel

The SUMIFS function works in a similar way with text as with numbers, but there are two key differences. First, text in Excel ...
MUO on MSN

I didn’t know these Excel functions existed, but now I can’t live without them

W hen you're working with data in Excel, certain tasks can feel unnecessarily tedious. Maybe you need to split a column of full names into separate first and last name columns, or combine text from ...
Electronic Specifier

Mobile vs. fixed vs. average speed cameras: which best suits traffic enforcement?

There are three primary cameras that help carry out enforcement initiatives: mobile speed, fixed speed, and average speed ...