A woman who comes from a European business dynasty is taking part of her inheritance and allowing 50 strangers to determine what she does with more than $27 million. Why? It's her way of fighting wealth inequality. Marlene Engelhorn, 31, believes the Austrian government should impose taxes on wealth and inheritance – but since they aren't, she is taking it into her own hands, she says. She has sent invitations to 10,000 randomly selected people in Austria, asking them to complete a survey. Out of those who complete it, she will narrow the pile down to 50 people of different...