Thesis (doctoral)--Hochschule für Wirtschaft und Politik, 1998. / Includes bibliographical references (p. 237-246).

Thesis (doctoral) - Freie Universität, Berlin, 2004. / "with 12 figures and tables". Includes bibliographical references ( p. [143]-155).

Doctorat en sciences sociales, politiques et économiques / info:eu-repo/semantics/nonPublished

published_or_final_version / Business Administration / Master / Master of Business Administration

Potentially valuable information about the underlying data generating process of a dependent variable is often lost when an independent variable is transformed to fit into the same sampling frequency as a dependent variable. With the mixed data sampling (MIDAS) technique and increasingly available data at high frequencies, the issue of choosing an optimal sampling frequency becomes apparent. We use financial data and the MIDAS technique to estimate thousands of regressions and forecasts in the quarterly, monthly, weekly, and daily sampling frequencies. Model fit and forecast performance measurements are calculated from each estimation and used to generate summary statistics for each sampling frequency so that comparisons can be made between frequencies. Our regression models contain an autoregressive component and five additional independent variables and are estimated with varying lag length specifications that incrementally increase up to five years of lags. Each regression is used to forecast a rolling, one and two-step ahead, static forecast of the quarterly Yen and U.S Dollar spot exchange rate. Our results suggest that it may be favourable to include high frequency variables for closer modeling of the underlying data generating process but not necessarily for increased forecasting performance. / Graduate / 0501 / 0508 / 0511 / benjamincann@gmail.com

University of Macau / Faculty of Social Sciences and Humanities / Department of Government and Public Administration

Thesis (Ph. D.)--University of Missouri-Columbia, 2000. / Typescript. Vita. Includes bibliographical references (leaves 110-114). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 2000. / Typescript. Vita. Includes bibliographical references (leaves 110-114). Also available on the Internet.

This study reviews three of Tobin’s major contributions to economics, namely; Tobin’s q , liquidity preference as a behavior towards risk, and Tobin’s global transaction tax on foreign exchange transactions to identify any potential unifying features. The original suggestion of this thesis, given Tobin’s last contribution, is the role of savings that links all three contributions. The extension of this study aims to review these contributions so as to come up with po ssible links between them and apply the theory of q to a sample of forty five South African firms to a ssess firm diversification and performance measurement when it comes to monopoly profits, as well as the stability of any exchange rate when it comes to the Tobin tax issue, given South Africa’s links to the Pound, Dollar and Euro. Our findings out of the empirical analysis performed hints at investors how to go abo ut in maximizing profit in the South African market based on the diversification s trategies they can adopt. Indeed non-diversified firms have a higher risk involved a nd performed better than diversified ones from 2007 to 2009. Our results bas ed on book values are also of great relevancy to entrepreneurs in assessing the degree of diversification optional to them. The deviation of q from unity is another interesting point to note wh en it comes to ordinary profits for monopoly firms like Eskom. Tobin’s q and risk are indeed connected through discounting and the relationship between risk and a transaction tax imposed on international financial transactions is taxation itself. In order for economic growth to arise into an economy, investment is cruc ial and this is achieved if volatility in financial markets is reduced, and hence the impo rtance of reviewing the Tobin tax. The focus here is to link savings, the Tobin tax an d the issue of international financial market liberalization to determine the impact on gl obal developments and trace these through to the South African situation. We also rev iew Tobin’s q and its important link to the IS/LM framework which differs from the normal textbook a nd Keynesian view. In other words we explore in detail, Tobin’s (1969) general equilibrium approach to monetary policy and look at how financi al policies and events can influence aggregate demand, through an effect on th e valuation of physical assets relative to their replacement cost. As the review h opes to find a common theme, in the three contributions, we present a discussion of eac h original article in some detail. Chapter Two and Three includes Tobin’s q and portfolio decisions respectively. Chapter Four covers the tax on foreign exchange tra nsactions in greater detail, and vii attempts to view this as a solution to the passing current world economic crisis. A final chapter provides a summary of our results and modest macroeconomic proposals for South Africa. / Thesis (M.Comm.)-University of KwaZulu-Natal, Pietermaritzburg, 2009.

Thesis (Ph.D.)--Southern Illinois University, Carbondale, 2005. / Vita. Includes bibliographical references (leaves 79-88).