As a result of changes in the British policy during the late 1800s, the American colonies?

Why would the rumor of a government contract change the value of this companys stock

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife

Explain how stock market speculation contributed to the great depression.