Do learning by teaching environments with metacognitive support help students develop better learning behaviors

We have developed Teachable Agent environments that use learning by teaching with metacognitive support to help middle school students learn about complex science topics. To demonstrate the effectiveness of this approach, we have run studies that compare three systems where (i) students are taught by an agent, (ii) students teach a computer agent, and (iii) students teach a computer agent and receive metacognitive support while teaching. Students ’ activities on the system, captured in log files, were coded using six primary learning activities. In this paper, we analyze behavior fragments systematically derived from the activity sequences, and identify behaviors that correlate well with high and low student performance. Our results show that students who teach and receive metacognitive support exhibit more of the high performing behaviors than the other two groups

Impact of the 1988 Basle Accord on International Banks.

The ostensible purpose of the Basle Accord was to standardize bank-capital regulations among the twelve leading industrial countries. Its ulterior goal was to 'level the playing field' by eliminating a funding-cost advantage of Japanese banks that had allowed them to capture more than one-third of international lending. The wealth gain for Japanese bank shareholders was 31.63 percent. Wealth effects for shareholders of non-Japanese banks were not significant. These results suggest that the Baste Accord did not eliminate the pricing advantage of Japanese banks, challenging the non-Japanese regulators' contention that the regulation would help level the playing field. Copyright 1996 by American Finance Association.

Dividend Imputation and Shareholder Wealth: The Case of New Zealand

On April 1, 1988, New Zealand stopped the double taxation of dividends by implementing a full dividend imputation program. Because many believed that the tax advantage of debt had led to more highly leveraged firms subject to greater financial risk than was socially optimal, it was hoped the removal of incentives to finance with debt would result in a more efficient allocation of capital. The empirical results suggest that the shareholder wealth gain from dividend imputation was more than offset in firms with large debt levels. Moreover, an examination of debt ratios indicates debt levels declined in the post-imputation period. Copyright Blackwell Publishers Ltd 2002.