1. Lower interest rates
2. Lower economic growth
3. Safe Haven Buying / Liquidity Related Buying / Risk Aversion Buying
4. Quantitative easing enacted (due to risk aversion, crisis, slow growth, sluggish growth, deflation, etc)
5. Quantitative easing increased (due to risk aversion, crisis, slow growth, sluggish growth, deflation, etc)
6. Deflation (since it can cause some of the above to happen)
1. Higher interest rates
2. Higher economic growth
3. Risk appetite leading to people to move away from low yielding assets and into assets that have a higher yield and/or potential for capital appreciation. For example, the capital rotation out of safe haven bonds and into stocks. Removal of the safe haven bid.
4. Quantitative easing removed completely (due to higher economic growth, higher inflation, etc)
5. Quantitative easing reduced. The withdrawal of stimulus due to economic recovery and/or stronger growth.
6. Increase in inflation