Its sample and period decide what Ball and Brown (1968) can still support, and the GB791 Unit 7 empirical study appraisal asks that of 261 firms and nine years. Searches like "gb 791 unit 7 assignment example", "gb791 unit 7 sample" and "gb791 unit 7 example" land here.
What a finished GB791 Unit 7 empirical study appraisal looks like
Six pages under the full citation: Ball, R., and Brown, P. (1968), An empirical evaluation of accounting income numbers, Journal of Accounting Research, 6(2). The first section restates the design: the sign of unexpected income from two expectation models, a naive prior-year model and one relating a firm's income change to the market's, set against abnormal monthly returns summarized in an abnormal performance index. The second appraises the sample, firms with complete Compustat income data across the full span, December fiscal years, CRSP price coverage and Wall Street Journal announcement dates, and names the bias each requirement introduces. The third appraises the period, a market with slower information and fewer institutional investors. The fourth weighs the result's durability, citing Beaver's 1968 volume evidence, later drift research by Bernard and Thomas, and Kothari's 2001 review.
How a GB791 Unit 7 example is structured
Appraisal, not critique, governs the order: the question is less whether the design was sound for 1968 than what its sample and period allow a reader to conclude now. The design is restated briefly because the appraisal depends on the expectation models and the monthly return interval. Each sample requirement is then taken separately, with its purpose and its cost: complete income data across two decades favors surviving, established firms; December year ends cluster announcements; announcement dates from one newspaper limit coverage. The period section asks what 1957 to 1965 represents, and whether faster information today would shift the timing result, most of the price movement arriving before the announcement month. Durability is judged through replication and extension rather than citation counts. The conclusion separates the direction of the association, which has held repeatedly, from its timing and magnitude, which belong to the period.
Two expectation models
A naive prior-year model and a market-linked income model define good and bad news. Agreement between them strengthens the sign classification without making either model precise.
Survivors with complete records
Requiring income data across two decades admits only firms that lasted. The appraisal names that survivorship tilt and asks which direction it pushes the result.
December clustering
Restricting the sample to December year ends groups announcements in the same months, so market-wide news and firm news arrive together. The market adjustment has to carry that load.
A slower market, 1957 to 1965
Fewer institutions and slower information flow shaped when prices moved. The timing finding, most movement before the announcement, is read as a feature of the period.
Direction durable, timing dated
Replications across markets and decades keep the sign of the association. Timing and magnitude, the appraisal concludes, belong to the conditions of the original sample.
Where marks go in GB791 Unit 7
Appraisals that praise Ball and Brown as foundational, then list its findings, give the grader nothing appraised; the prompt usually asks what the sample and period can bear. Treating the sample restrictions as flaws rather than trade-offs misreads the genre, since each requirement solved a data problem of its time and the appraisal should say which one. Getting the design wrong draws exact comment, for instance describing daily returns or a single expectation model. Candidates who claim the result no longer holds overreach as badly as those who treat 1960s timing as permanent. Durability argued from citation counts rather than replication reads as weak evidence. Missing the distinction between direction and magnitude leaves the conclusion vague, and citing later studies without full references costs a smaller amount.
Get a GB791 Unit 7 example written to your instructions
Which widely cited study did your instructor assign for appraisal? Send its citation, any framing your instructor added and the grading rubric for this unit. The appraisal returned restates the design briefly, takes each sample and period choice in turn with its purpose and cost, and judges durability through replication. First custom sample free; 24-48h is the norm.
GB791 Unit 7 questions, answered
Is it unfair to appraise a 1968 study by modern standards?
The appraisal avoids that by asking a different question: not whether the authors should have done better, but what their sample and period allow a reader to conclude today. Each restriction is presented as a solution to a data problem of its time. Judging a study against the data available then, while stating what it cannot support now, is the fair version.
Why does the appraisal cite Beaver (1968)?
Because Beaver's study, published the same year, tested information content with trading volume and return variability around announcements rather than the sign of unexpected income. Two different designs reaching compatible conclusions is evidence of durability that no amount of citation can supply. The appraisal uses Beaver alongside later drift research to judge which parts of the original result held.
What makes the timing result period-specific?
The finding that most price movement came before the announcement month depends on how quickly information reached prices through other channels in 1957 to 1965. Interim reports, analyst coverage and news flow have all changed since. The appraisal argues the direction of the association has proven durable, while the proportion anticipated is a property of the period and the monthly interval.