Forecasting based on spectral time series analysis: prediction of the Aurubis stock price

This article analyzes the correlation between compliance to the Austrian Code of Corporate Governance and financial success of Austrian stock listed companies. It uses a sample of 52 Austrian companies that are listed on the Vienna Stock Exchange and corporate data collected from company publications such as annual reports, financial reports, corporate governance reports and company websites. Three accounting measures – return on assets, return on equity and net profit margin – were chosen in order to proxy the financial performance of a company. The period under review ranges from 2008 to 2016, whereas particular attention is given to the years 2010 to 2016. A corporate governance compliance score has been established on the comply or explain basis and recommendation rules of the Austrian Code of Corporate Governance in order to measure a company’s ability of implementing ‘good’ corporate governance practices. In line with research for other countries, this study finds no statistical evidence that a correlation exists between high compliance to the Austrian Code of Corporate Governance and financial success of companies listed on the Austrian Stock Exchange. The paper highlights the uniqueness of the Austrian Corporate Governance system when compared to other systems and gives arguments why companies comply with corporate governance recommendations.

COVID-19 has impacted the world economy in an unprecedented manner; the financial markets indicate the same. This spontaneous event landed most of the stock markets into extreme volatility. Large capital outflow and extreme rapid fall were seen among almost all the world financial markets. Though similar trend prevailed everywhere during this pandemic, the impact could not be accumulated in absolute terms. Using the data of five stock markets, the current study endeavored to draw an impact of COVID-19 on major stock exchanges. The study uses wavelet coherency analysis on one-year daily data from June 2019 to May 2020 of five stock markets: Bombay Stock Exchange (BSE), London Stock Exchange (LSE), NASDAQ, Tokyo Stock Exchange (Nikkei), and Shanghai Stock Exchange. It is observed that there are time-variation and scale-variation in co-movements between the studied markets. During the crisis, the co-movement concentrates on a short time scale, even for two days. These results have significant implications for international investors, which will help them in portfolio diversification with time elements. All the stock markets under study have indicated co-movement at different time scales and frequencies with varying cross-power levels. However, the concentration of co-movement is found the most between the UK and the US stock markets. It is the least between Japan and the UK. In BSE, co-movement at shorter time scales started late. NASDAQ is leading only in one case, i.e., Shanghai Stock Exchange. BSE is not leading any stock index. LSE is in the leading position in all four cases. It has also been observed that co-movement started to concentrate at a shorter time scale as soon as the impact of the crisis increased.

Liquid liabilities are required to develop key sectors that drive the Nigerian economy by ensuring that loans are available for investment purposes. However, controversies concerning the effectiveness of growth finance in fostering liquid liabilities in Nigeria exist. Thus, this study examines the relationship between growth finance and liquid liabilities in Nigeria, with insight into Nigeria’s real sector. In achieving its objective, the study utilizes secondary data from the annual reports of the Central Bank of Nigeria (1980–2018). The study finds that gross domestic savings significantly drive liquid liabilities in the long run compared to other growth finance indicators, which include stock market development and remittance inflows. Therefore, the study recommends that to improve liquid liability, gross domestic savings, among other growth finance indicators, should be harnessed as a tool to efficiently influence liquid liabilities in the Nigerian economy. The study concludes that attention should be paid to development policies that drive all stakeholders’ gross domestic savings.