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Susan Kidwell, William Rainey Harper Professor in Geophysical Sciences, discusses a new tool for measuring human impact on marine ecosystems. By collecting data on the living organisms and the skeletal remains of those same organisms scientists can perform what is called a live-dead analysis. Large discrepancies in the ratio of living and dead organisms correlate with radical changes in the ecosystem.

Much of everyday behavior is directed toward understanding, responding to, or attempting to change how we are seen by the people around us. We can be easily led astray, however, by common errors in these perceptions. New research shows us that when we want to better understand how others see us, we should start by changing the way we look at ourselves.

How do we choose the means--that is, the actions, objects, or other resources--with which we attempt to achieve our goals? New research suggests that these choices are partly determined by the extent to which available means are only good for the specific goal we hope to accomplish.

New research suggests that the best way to promote fraud detection is to extend the Federal Civic False Claims Act to corporate fraud.

Mutual fund managers tend to invest more heavily in companies headed by senior officers who attend the same universities as the fund mangers. Futhermore, those investments tend to be more fruitful than their holdings in firms with which they have no connection.

One of the key questions in corporate finance is how a firm's reliance on external finance affects its investment policy. New research suggests that creditors play a much more direct role in firm investment policy than has been previously recognized.

The widespread adoption of new technologies-from the automobile to the internet-tends to be accompanied by stock market booms and busts. Why do the stock prices of innovative firms tend to exhibit apparent "bubbles" during technological revolutions?

It has long been suspected that fear of competition spurs managers to hide better-than-average business unit profit performance. However, a new study instead finds evidence that fear of increased oversight leads managers to hide less-than-average business unit performance.

Even though insider trading laws have become stricter over time, insiders are still trading their company's stock and making money from trades. New research examines how insiders limit trading their company's stock for fear of legal repercussions when future earnings reports are likely to become extremely positive or negative.

The current practice of charging money for life-saving health products in developing countries is a source of controversy among policymakers. Opponents argue that the practice is unfair and that fees will result in goods only reaching the richest of the poor. Advocates of pricing, including non-governmental organizations, argue that free products will not be valued or used. New research suggests charging money for these products could lead to more intensive product use, and thus greater health benefits.