ParticleGrl said:
Its important to realize that economics isn't really a science, its a social science. This is a big difference- making predictions can change behavior, can break the models, etc.
Further, lots of economics simply doesn't have much empirical support- what evidence is there for an upward sloping supply curve? Micro-economics is too "pure" to be easily empirically observable in the actual economic word (consider the Card-Krueger minimum wage study),and macro relies so much on expectations that something like the fed holding a press conference can change the empirical picture dramatically.
Economics I'd say is definitely a science, but not a "hard" science in the way say physics or chemistry is. But it still has theories and hypotheses. It's a social science as you say, and you can't test it in the way you can other sciences, but it is still a science. You can present hypotheses and theories and then put them to the test to see if they work or not. By contrast, some "hard" sciences cannot be tested in a laboratory, such as astronomy or even much of climate science.
This can be contrasted with evolution or climate change (which is actual science) where the evidence is much less ambiguous, and easily replicable.
I don't know if evolution is replicable so much as there is just a lot of evidence for it and there really is no alternative explanation. But no one has really actually seen it happen, at least not on a large scale. Climate change, the evidence I think is much more questionable and not easily replicable either. As said, we can't really conduct experiments with climate change.
Its one thing to say "I don't believe raising the minimum wage will have much of an impact on unemployment"- there is legitimate empirical evidence to suggest this is true, and a micro-economics model to suggest this is false.
Well it depends. Raising the minimum wage too high will raise unemployment by simple supply and demand, as it's a price control. You raise the price on something higher than what it should be and you will end up with a surplus. It isn't completely cut and dry, just as the price of gas can go up, it doesn't mean the demand automatically drops off, but after a certain point, people begin to change their behavior significantly.
Its another to say "I don't believe man is causing global warming"- here there is a causal mechanism that can be readily observed in a high school science fair project,and there is tons of empirical evidence.
The global climate is a lot more complex than a science fair project though, and the empirical evidence issue is controversial as well. There's also a problem with politics in it, as any university or scientist that doesn't adhere to the line of man-made climate change runs a serious risk to their career and ability to get grant money.
For example, the Sun influences the climate as well; CERN recently concluded in an experiment that climate models will need to be revised because of this:
http://www.theregister.co.uk/2011/08/25/cern_cloud_cosmic_ray_first_results/ .
So that being said, in what areas are the democratic party's views on economics based on "pure ideology"? What mainstream economic areas do democrat's strong ideological beliefs blind them to?
Bigger government is always the solution, government is very competent, restraining free trade preserves jobs, belief in a living wage, blind faith in massive fiscal stimulus, a large social welfare state to fix poverty problems (without which the claim is poverty will skyrocket), etc...there are some others I am just not remembering them.
One can make arguments for all or most of the above, but too many on the Left have a blind adherence to them not based on really understanding the issues.
Also, what about the gold-bug republicans? Rick Perry has made derogatory comments about the fed, Ron Paul has crusaded for a gold-standard for years. These aren't mainstream positions!
I agree 100% here, hence my comment above on the Right adhering to some views on economics based much more so out of ideology as well. Other such right-wing views are: all taxes bad, all government bad, smaller government is always the answer, government cannot do anything right, etc...