123This article addresses the allocation of Polish household savings that are invested in financial assets. As an economic category, these savings are very important in every country because they determine investments in the national economy, thereby influencing a country's further economic growth and development. From this point of view, investigating both the allocation of personal savings and their structure is essential because they change due to changing economic circumstances, changing situations in the world's financial markets, especially in the stock exchange markets, and the development of financial markets. The main purpose of this article is to analyze the changes in the allocation of savings in Polish households and the structure of their investment in financial assets. These changes, which are empirically observed, result from the circumstances of the national economy, which affect the behavior of investors in the stock market and determine the interest rate levels. The analysis is conducted on the basis of trend models with variations of parameters. The analysis has been carried out for the period Q4 2003 -Q3 2014. IntroductionThe savings of households are a very important economic category in any economy and influence its development. The allocation of these savings is particularly essential, thus making it the subject matter of this paper. Personal savings have a direct impact on economic investment. The allocation of these savings attests to the inflow of capital to those sectors savings of the Polish households, financial assets, analysis of allocation and its structure, trend models with variations of parameters

Beta parameter is one of the commonly used measurements of individual stockor portfolio investment risk and plays a crucial role in modern portfolio theoryparticularly in management of financial investment portfolios. Many studieshave been done in this field, particularly on its properties such as stability in thecontext of the stock market cycle phases, measuring frequency of rate of return,length of sample period. However, the number of studies concerning beta parameterin the counties of Central and Eastern Europe that have undergone systemictransformation at the end of the previous century is much lower. Therefore wedecided to study the changes of behavior of the beta parameter in those countries.The main aim of this article is to examine the beta parameter stability over bulland bear market conditions on the Warsaw Stock Exchange. The paper presentsan analysis of betas stability for 134 stocks of the largest companies listed at theWSE during years 2005–2013.

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Risk plays a significant role in various aspects of financial decision throughout the world financial markets. Beta parameter is one of the commonly used coefficient to estimate the systematic risk associated with stocks. Beta is mostly calculated using single index market model by W. Sharpe. This study examined the beta parameter under bull and bear market conditions on the Warsaw Stock Exchange (WSE). This paper analyses the beta responses for bad and good news for 44 stocks (14 stocks from the WIG20 index and 30 stocks from the mWIG40 index) over the last six years of trading at the WSE. Beta was calculated using monthly returns over the period 2005-2011, separately for the bull and the bear market. Our analysis finds strong evidence that beta is different in bull and bear market phase.

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