This continues even today with Jews having frugality, thriftiness to an extreme along with greed.
Some Jews have those characteristics. As do some Christians and some Atheists. It is an outdated stereotype which really has no place on this board or amongst the IDIC fanbase. As I said, I doubt that the artists that created the Ferengi had Jews in mind when they came up with this new race. In fact, in dialogue, Data compares them to "Yankee traders", not Jews.