[We use daily short-selling data to examine whether short selling around seasoned equity offerings (SEOs) reflects informed or manipulative trading. Around SEO announcements, we find no evidence of informed short selling. Around issue dates, higher levels of preissue short selling are significantly related to larger issue discounts for non-shelf-registered offerings. This evidence is consistent with manipulative trading. We show that SEC Rule 105 constrains some but not all manipulative trading. Our results reverse previous research that uses monthly short-interest data, because daily data allow more powerful tests. Our evidence helps explain the increased popularity of shelf registrations. Although short selling usually enhances price efficiency, we document a situation where short selling reduces price efficiency.]

[When a developed-country multinational firm acquires majority control of a firm in an emerging market, there is an economically large and statistically significant increase in the acquiring firm's stock price. In 1986-2006, developed-market acquirers experienced positive and significant abnormal returns of 1.16%, on average, over a three-day event window. Positive acquirer returns and dollar value gains appear unique to emerging-market mergers and acquisitions and are not replicated when the same developed-market acquirers take over firms in developed markets. The size of the stock price increase is more pronounced (a) the weaker the contracting environment in the emerging market and (b) for industries with high asset intangibility.]

We use daily short-selling data to examine whether short selling around seasoned equity offerings (SEOs) reflects informed or manipulative trading. Around SEO announcements, we find no evidence of informed short selling. Around issue dates, higher levels of pre-issue short selling are significantly related to larger issue discounts for non-shelf-registered offerings. This evidence is consistent with manipulative trading. We show that SEC Rule 105 constrains some but not all manipulative trading. Our results reverse previous research that uses monthly short-interest data, because daily data allow more powerful tests. Our evidence helps explain the increased popularity of shelf registrations. Although short selling usually enhances price efficiency, we document a situation where short selling reduces price efficiency.

When a developed-country multinational firm acquires majority control of a firm in an emerging market, there is an economically large and statistically significant increase in the acquiring firm's stock price. In 1986–2006, developed-market acquirers experienced positive and significant abnormal returns of 1.16%, on average, over a three-day event window. Positive acquirer returns and dollar value gains appear unique to emerging-market mergers and acquisitions and are not replicated when the same developed-market acquirers take over firms in developed markets. The size of the stock price increase is more pronounced (a) the weaker the contracting environment in the emerging market and (b) for industries with high asset intangibility.