310 research outputs found

    What makes new stock markets succesful?

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    Successful financial markets can help grow emerging economies, says Professor Mathijs van Dijk of Rotterdam School of Management (RSM). But new stock markets also regularly fail to take off, so when are the conditions right for establishing one? A new study by Van Dijk and a team of researchers reveals what ultimately makes stock markets flourish. Early success of the stock markets turns out to be a necessary condition. A solid banking sector and growing national savings predict success in the long run, they found. The result can provide insights to the 49 –mostly developing- countries worldwide that currently do not have a stock market

    What makes new stock markets succesful?

    No full text
    Successful financial markets can help grow emerging economies, says Professor Mathijs van Dijk of Rotterdam School of Management (RSM). But new stock markets also regularly fail to take off, so when are the conditions right for establishing one? A new study by Van Dijk and a team of researchers reveals what ultimately makes stock markets flourish. Early success of the stock markets turns out to be a necessary condition. A solid banking sector and growing national savings predict success in the long run, they found. The result can provide insights to the 49 –mostly developing- countries worldwide that currently do not have a stock market

    Detecting contact areas in vibrating steel beams using Energy Flux

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    The world faces an increasing energy problem, forcing people to search for sustainable energy sources. Offshore wind energy has shown great potential to financially compete with traditional energy sources. Recent developments like the slip-joint connection increase this potential. However, for further optimization of the design of a slip-joint, the location of the contact areas between the two cones must be known. Previous attempts to detect these contact areas based on techniques such as heat transfer or ultrasonic measurements have proven insufficient. A possible new way of detecting contact areas, is through the behaviour of Energy Flux. Energy Flux methods have shown great potential as a damping identification tool in other applications. Therefore, in this study the relation between Energy Flux behaviour and the presence of a contact point in the time-, frequency- and time-frequency-domain is studied. To this end, a numerical analysis of a vibrating simply supported Euler Bernoulli beam is conducted, simulating a contact area with a point load. The analysis in the frequency-domain showed the most promising results. Presence of a contact point (i) introduces peaks at twice the first and twice the second eigenfrequencies, and (ii) increases peak height at the location of the contact point. The pressure of the simulated contact point increased these effects. In the time-domain the presence of a contact point increased the amplitude of the cumulative energy flux. This change was most significant at the antinode of the first eigenmode. The location of the contact point was of little influence on this effect. These results show that the presence of a contact area influences the behaviour of the energy flux. The results are encouraging for a later implementation of the energy flux method for the detection of contact areas in a slip-joint. As a validation of these results, an experiment has been proposed. After execution of this experiment, further research is needed in (i) the behaviour of Energy Flux in a conical shape, and (ii) Energy Flux measurements of higher frequencies.Civil Engineerin

    Fertilization: trade-offs between manure abatement and plant productivity

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    In 2005, 30% of the Flemish farms faced a manure excess, while at aggregated level still 9.7% of the emission rights were unused. This means that, despite the various possibilities, Flemish farmers do not succeed in an effective exchange of manure between farms. In current paper is shown how inorganic fertilizer use influences the use and exchange of organic nitrogen. Because of the mutual interdependency between organic and inorganic nitrogen emission rights (or quota), inorganic nitrogen use limits the emission rights for organic nitrogen. Utilisation of these emission rights are analysed as a trade-offs choice between plant productivity (use of inorganic nitrogen) and manure disposal, as the major abatement alternative of manure production. Farmers still prefer inorganic fertilizers because of their effect on plant productivity and income. However, by changing the quota rent of organic nitrogen, the fertilization behaviour can be influenced. A higher quota rent of organic nitrogen would increase the use of manure. This trade-off behaviour seriously influences effectiveness of policies. When the objective is to lower the total nitrogen use, a mere reduction of organic quota can partially be counteracted by a higher inorganic nitrogen use. When the objective is to better spread the manure, increasing the quota rent for deficit farms will increase their acceptance of manure.manure abatement, nutrient emission rights, Tobit model, Crop Production/Industries,
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