What forces have had an effect on increasing health cost over the past 30 years?

What forces have had an effect on increasing health cost over the past 30 years?
How is research used to produce effective public health care policies in order to spend public resources wisely? Give one example.
Identify your legislators for the state and national level. Please include the name of your state, district numbers for both your state level representatives and senators, as well as those on the national level. To respond to this item, you will have two US senators, one US Congressman, one state senator and one state representative
What contexts or factors inform crafting/developing/creating policy?
Why should legislators use research evidence in public policymaking?
Why are effective programs not always implemented?