gamair (version 0.0-9)

ipo: Initial Public Offering Data

Description

Data on the relationship between the number of initial public offerings (of shares in a company) and other potentially important variables. It is probably necessary to lag some of the explanatory variables.

Usage

data(ipo)

Format

A data frame with 6 columns and 156 rows. The columns are:

• n.iponumber of initial pubilc offerings each month.
• irthe average initial return (volume weighted): this is the percentage difference between the offer proce of shares and the price after the first day of trading.
• dpthe average percentage difference between middle of the price range proposed at first filing of the IPO, and the eventual offer price.
• reg.tthe average time between filing and offer.
• ttime, in months.
• n.ipomonth of the year (1 = January).

Source

http://schwert.ssb.rochester.edu

References

Lowry, M. and G.W. Schwert (2002) IPO market cycles: Bubbles or sequential learning? The Journal of Finance 67(3), 1171-1198

Wood, S.N. (2006) Generalized Additive Models: An Introduction with R. CRC

Examples

  data(ipo)
  pairs(ipo)