Why do women earn less than men?

Why do women earn less than men? I I recently learned two interesting facts about salaries in my country, the Czech Republic. Women earn on average 20% less than men, wow! And for salaries in the same position (and the same company) the difference is about 10% whilst the EU average is 5%. Why the difference? As you can imagine, there are many different reasons and they do vary from country to country. There is one major contributing factor however, that is valid across countries. Ready to dive right in? The good news is, there’s a lot that we women can do to narrow the salary gender pay gap!