Oxymoron. A “smart” Leftist. I they were truly smart, they wouldn’t be Leftists IMHO.
Here’s how the study’s researcher defined liberalism (note that the researcher’s quote is then followed by IronShrink’s commentary:
I provisionally define liberalism (as opposed to conservatism) as the genuine concern for the welfare of genetically unrelated others and the willingness to contribute larger proportions of private resources for the welfare of such others.
Got it? Liberals care about unrelated others, and conservatives do not. This is perhaps the most simplistic, unsubstantiated, self-serving definition I have ever encountered.