Browsing by Author "Mohammed, Anatu"

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    ANALYSIS OF FREIGHT FLOWS FROM NORWAY TO SWEDEN
    (2003) Mohammed, Anatu; Göteborgs universitet/Graduate Business School
    In spite of the role and importance of freight transportation, it is often an overlooked aspect of the transportation system. This thesis report analyses freight flows from Norway to Sweden, and computes source-final destination matrix of redistribution of flows to final destinations. Thus the main purpose of the thesis is to find out the destinations of the freight flows to Sweden from Norway. Our preliminary analysis included determination of seasonal variations of the freight flows for the various commodity groups, and the proportion of flows from the border stations. Furthermore, we aggregate the flows into some geographic areas in Sweden and analyse the composition and proportion of the flows to the geographic areas emphasizing on the geographic areas with higher volumes. Finally, in the second part of the research we propose that further research is necessary to redistribute the flow to final destinations. In this context, we explore the industrial structures of Sweden and employ an algorithm to redistribute the flows to the various counties by comparing flows to postcodes declared to the customs by importers to estimated flows to industries, using employment ratios as proxy for industrial concentration and subsequently, intermediate input consumption. Using the algorithm , we demonstrate how to compute a source-final destination matrix indicating the redistribution of the flows.
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    Foreign Capital and Firm Level Efficiency in Ghana: A Metafrontier Production Function Approach
    (2005) Alorvor, Newlove Franklin; Mohammed, Anatu; Göteborgs universitet/Graduate Business School
    The role of foreign human and physical capital in the productive efficiency of the manufacturing firms in Ghana is examined in this thesis. We compare efficiency scores of two groups of firms- firms with foreign presence and local firms- that have heterogeneous technology. A Stochastic Metafrontier production function, which accommodates differences in technology, is estimated. The estimated technical efficiencies indicate that manufacturing firms in Ghana are generally less efficient. Although firms with foreign presence had higher mean value added figures relative to the local firms, the local firms were found to be more efficient and also closer to the potential output defined by the metafrontier function compared to the firms with foreign presence. We also find technical efficiency to be influenced by firm size, food producing firms, profits and firms located in the capital city (Accra). Moreover, our results show that physical capital is more productive in the local firms, which implies that (foreign) physical capital to local manufacturing firms in Ghana is more important than foreign human capital.