Select a UK listed company and download share price data for the last two years. Plot a scatter graph of the daily or weekly share price movements. [Hint: In the scatter you should plot the change in price on day t = 1 (y-axis) against the change in price on day t (x-axis]. Plot a time series graph of the daily or weekly share price movements. To what extent does the data offer evidence that the stock market prices shares efficiently? Discuss the view that excessive concentration on companies' stock market performance can have adverse long-run effects. Select a UK listed company and download share price data for the last two years. Plot a scatter graph of the daily or weekly share price movements. [Hint: In the scatter you should plot the change in price on day t = 1 (y-axis) against the change in price on day t (x-axis]. Plot a time series graph of the daily or weekly share price movements. To what extent does the data offer evidence that the stock market prices shares efficiently? Discuss the view that excessive concentration on companies' stock market performance can have adverse long-run effects