A global demographer explains why how fast World Christianity is growing depends on who is counting
By
Justin Long
Led by Jesus' commission to make disciples of all nations, Evangelicals have a vested interest in knowing where Christianity exists, is growing, or needs more help to grow. Understanding statistics concerning the spread of religions around the world is a complex challenge. This is not helped by different methodologies that generate different outcomes. A world-class demographer explains the difference between the latest Pew report and more robust existing analysis by Christian demographers.
