Briefly answer the following questions

$1-$ What is the significance of EBITDA? $2-$ What is the relationship between interest rate and the treasury yield and the significance of inverted yield curve?

$3-$ Why does the stock market respond positively to low inflation?

$4-$ What are pros and cons of strong dollar?

$5-$When do bonds trade at discount and when do they trade at premium?

$6-$ Why do Americans still dissatisfied with where economy is heading even with historic low unemployment at $3\mathrm{.}5\%$ with inflation coming down from its peak of about $8\%$ to about $3\%.$