The announcement that the
Nobel Prize for Economics had been awarded to Merton Miller, "William Sharpe and
Harry Markowitz, in 1990, finally acknowledges that financial economics is a genuine
science, in the same league as the physical sciences. Defining what is financial economics
is not straightforward as it is a subject which overlaps with both economics, finance and
also with statistics. However, for the purposes of this book, we will use the term to
refer to those aspects of economics, finance and investment management which involve the
study of financial markets. More precisely, we will be using the term financial economics
to mean a subject which concerns itself with the building of models of asset price
determination for investors seeking to build portfolios in a world of uncertainty.
Finance itself, as a subject
for serious academic study in its own right, is relatively new, having grown out of
applied economics over the past 50 years or so. Financial economics is even more recent.
Notwithstanding its short life, the empirical research and theoretical developments in
financial economics have been immense, with the USA dominating the subject for most of the
period.
The last 20 years have seen a
revolution in the way financial economists understand the world around us. It was once
thought that stock market and bond market returns were essentially unpredictable. Now it
is recognized that stock and bond market returns have a substantial predictable component
at long horizons. It was once thought that the capital asset pricing model (CAPM) provided
a good description of why average returns on some stocks, portfolios, funds or strategies
were higher than others. Now it is recognized that the average returns of many investment
opportunities cannot be explained by the CAPM, and so-called 'multifactor models' have
supplanted the CAPM to explain them. It was once thought that long-term interest rates
reflected expectations of future short-term rates and that interest rate differentials
across countries reflected expectations of exchange-rate depreciation. Now we can see what
are known as time-varying risk premiums in bond and foreign exchange markets as well as in
stock markets.
The build up to these ideas
are developed throughout the text providing a comprehensive review of all the key issues
in this exciting new subject: financial economics.
508 STR.
ISBN 0-273-63073-3
Księgarnia nie działa. Nie odpowiadamy na pytania i nie realizujemy zamówien. Do odwolania !.