What is the dividend yield ratio and how is it useful to me as an indicator of the stock and the market overall?

Can I use dividend yield as a measure of returns?

I just read that that the A/D ratio of the market has been steadily falling in the market. What does that mean for an investor?

I often hear investors asking me to listen to the market. What it means?

Does the yield change when the frequency of coupon payments is increased?

How does the increase in the yield in the market actually impact the present value and future value of the flows?

What is the basic premise of the market segmentation theory and how to apply the same?

Do the market yields impact duration of the bond and how important is this impact?

Can you explain to me with an example, how I as an investor can make the best of the grey market information?

How big is China as a consumer economy and how does that impact the overall role of China in the global economy?

I am a beginner in the stock markets. Are there any special set of rules that I need to remember as a starter so that I can be profitable?