There are three forms of the efficient market theory. Tests that have found there are no patterns in share price changes provide evidence for the form of the theory. Evidence for theform of the theory is provided by tests that look at how rapidly markets respond to new public information, and evidence for theform of the theory is provided by tests that look at the performance of professionally managed portfolios. Market efficiency results from competition between investors. Many investors search for information about the company's business that would help them to value the stock more accurately. This is known asanalysis. Such research helps to ensure that prices reflect all available information. Other investors study past stock prices for recurrent patterns that would allow them to make superior profits. This is known asSuch research helps to eliminate any patterns.

weak , semistrong , strong , Fundamental , technical

Explanation:

The efficient market theory states that share prices show all the information. According to opponents of the efficient market hypothesis, stocks can deviate from their fair market values i.e, it is possible to beat the market.

There are three forms of the efficient market theory. Tests that have found there are no patterns in share price changes provide evidence for the weak form of the theory. Evidence for the semistrong form of the theory is provided by tests that look at how rapidly markets respond to new public information, and evidence for the strong form of the theory is provided by tests that look at the performance of professionally managed portfolios. Market efficiency results from competition between investors. Many investors search for information about the company's business that would help them to value the stock more accurately. This is known as fundamental analysis. Such research helps to ensure that prices reflect all available information. Other investors study past stock prices for recurrent patterns that would allow them to make superior profits. This is known as technical Such research helps to eliminate any patterns.

hi : ) i found this so i hope this !

"we first find value of tax in dollars.

the difference between the two prices   is: 23. 54 - 22 = 1.54

therefore the sales tax in dollars is 1.54

the tax % will be   (amount of tax / original cost price ) × 100

(1.54 / 22) × 100  → (0.07) × 100 =   7

so the tax rate is 7%

we can double check the answer.

7 % of 22   → (7/100) × 22 → 0.07 × 22 = 1.54

22 + 1.54 = 23.54"

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