I. Introductory: definitions, 583. — Issue of discrimination versus uniformity only resolvable by precise distinction between joint and overhead cost, 585. II. Joint and overhead cost distinguished, 586; — joint cost, overhead cost, and monopoly all influence pattern of discrimination, 589; — true instances of joint supply, 592. — III. With overhead cost alone discrimination should be adjusted to the degree of utilization, 594; — the case of a single road with a given investment, 595; — proper and improper rate policy, 597; — marginal cost a useful tool for determining proper degree of discrimination, 599. — IV. Problems presented by discontinuity in expansion, 602; — different degrees of discontinuity, 604. — V. Qualifications of the proper rate policy for: different divisions, 609; — competing routes, 611. — VI. Complications presented by time jointness, 613; — unlikely that discrimination should ever give way wholly to uniformity, 614; — stability, 616.

We examine the effect of option listing on the immediate stock-price response to earnings announcements. Contrary to prior studies using earlier data, we find firms initiating option trading after 1986 fail to exhibit a significant decline in earnings response. We then examine 420 firms initiating option trading during 1973–1993. In a series of tests controlling for market-wide effects and changing firm size we find some evidence that option listing may actually increase the stock-price response to earnings, but no evidence listing reduces the response. Both longitudinal and cross-sectional tests produce similar results.

Reviews the book "Principles of Accounting," by Rufus Wixon and Robert G. Cox.

Reviews the book "Spicer & Pegler's Practical Auditing," by Walter W. Bigg.

Reviews the book "Cutting Your Unemployment Taxes," by Richard J. Potter.

Reviews the book "Cost Accounting," 4th ed., by John J.W. Neuner.

Reviews the book "Consolidated Statements," by George Hillis Newlove.