When the first edition of this text book was published in 1996, the World Bank defined"low-income country" as one with per capita income of less than $501. In 2003, when the third edition of Global Marketing appeared, "low income" was defined as $785 or less in per capitaincome. The latest edition shows that $1,025 is the current "low income" threshold. How do you explain the upward trend in the definition of income categories during the past 17+years? What is the take away for you as a student of Global Marketing