346 research outputs found
The effects of climate on decomposition of cattle, sheep and goat manure in Kenyan tropical pastures
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Energy-efficient mobile Web computing
Next-generation Web services will be primarily accessed through mobile devices. However, mobile devices are low-performance and stringently energy-constrained. In my dissertation, I propose the design of a high-performance and energy-efficient mobile Web computing substrate. It is a hardware/software co-designed system that delivers satisfactory user quality-of-service (QoS) experience on a mobile energy budget. The key insight is that the traditional interfaces between different Web stacks need to be enhanced with new abstractions that express user QoS experience and that expose architectural-level complexities. On the basis of the enhanced interfaces, I propose synergistic cross-layer optimizations across the processor architecture, Web runtime, programming language, and application layers to maximize the whole system efficiency. The contributions made in this dissertation will likely have a long-term impact because the target application domain, the Web, is becoming a universal mobile development platform, and because our solutions target the fundamental computation layers of the Web domain.Electrical and Computer Engineerin
On the Effects of CEO Compensation
The separation of ownership and control within companies cause agency
problems. Executive compensation is a tool to align the interests
between shareholders and top executives. This thesis studies the
potential effects of executive compensation packages on the firm value
and other factors. I have three main findings in this thesis. In the first
paper, I show that when CEOs are probability weighting, the optimal
contracts are convex. This explains the existence of option components
in CEO's compensation packages. In the second paper, I find that the
wage of the employee is increasing in the CEO pay. This relationship is
found both across firms and across time. I ascribe this relationship to the
behindness aversion of workers. The result suggests CEO compensation
incurs extra costs to the firms. In the third paper, I show that firms with
low wage gaps between CEO and workers are overpriced on the stock
market. The effect should be even stronger in the presence of inequalityaverse
investors. This finding suggests that investors do trade on the pay
inequality, and show that the mis-pricing comes from the overvaluation
of low wage gap stocks
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