I recall an article in Psychology Today that said that conservatism was a mental handicap. Further study showed that, in small, tribal groups, say 50-200, it is actually beneficial. In today's society, it's tragic. A conservative can easily handle the small societal tribes, but on a large scale, They melt down to quickly. Liberalism, likewise, is a mental handicap because it thrives in a larger society. Unfortunately, there are not studies on the progressive mind-set. I suspect that true progressives don't look at everything in black and white, nor do they accept what they are told blindly. They try to find the balance on both sides of the issue. Take the cry of tax cuts that has resounded for years. It's good for business, but it is not good for society. While the conservative theory is that the money saved by the rich will trickle down and stimulate the economy, it never seems to work that way. Instead of investing capital back into a business, those that benefit the most from a tax cut use those extra funds for their own non-use. It's all become money manipulation that creates nothing and people get fooled into thinking it has value. OTOH, small business people understand the benefits of reinvesting into their business, and are able to reap better benefits. Take my daughter: she and her partner deliver motor homes across the US and Canada. If they fly home, the cost of the ticket is a tax deduction. Meals on the road are tax deductible. Gas for not only the motor home, but for their tow car are deductible. New tires on the car are deductible. The key factor here is that they reinvest a larger percentage of their income back into the business than the major corporations. Their next big expenditure is going to be purchasing a new tow vehicle. Income vs outgo, they put a higher percentage back into their business than GE, GM, or any other corporation.