Business firms operate in a certain environment in which they interact with one another, with individuals, governmental organisations, financial institutions and various other interest groups. Operation of respective economic and social networks (both voluntary and private market determined) may...

The paper studies the financial market efficiency based on the data from Tallinn Stock Exchange, the rationality of expectations that is treated as financial rationality and the time series properties of inflation time series to get the forecasting model. The hypotheses to be tested are of...