Economists generally call the effect of an agreement on others that is not taken into account by the parties making the agreement:

Chance company had two operating divisions, one manufacturing farm equipment and the other office supplies. both divisions are considered separate components as defined by generally accepted accounting principles. the farm equipment component had been unprofitable, and on september 1, 2018, the company adopted a plan to sell the assets of the division. the actual sale was completed on december 15, 2018, at a price of $600,000. the book value of the division’s assets was $1,000,000, resulting in a before-tax loss of $400,000 on the sale. the division incurred a before-tax operating loss from operations of $130,000 from the beginning of the year through december 15. the income tax rate is 40%. chance’s after-tax income from its continuing operations is $350,000. required: prepare an income statement for 2018 beginning with income from continuing operations. include appropriate eps disclosures assuming that 100,000 shares of common stock were outstanding throughout the year. (amounts to be deducted should be indicated with a minus sign. round eps answers to 2 decimal places.)

Transactions on april 1 of the current year, andrea byrd established a business to manage rental property. she completed the following transactions during april: opened a business bank account with a deposit of $45,000 from personal funds. purchased office supplies on account, $2,000. received cash from fees earned for managing rental property, $8,500. paid rent on office and equipment for the month, $5,000. paid creditors on account, $1,375. billed customers for fees earned for managing rental property, $11,250. paid automobile expenses for month, $840, and miscellaneous expenses, $900. paid office salaries, $3,600. determined that the cost of supplies on hand was $550; therefore, the cost of supplies used was $1,450. withdrew cash for personal use, $2,000. required: 1. indicate the effect of each transaction and the balances after each transaction: for those boxes in which no entry is required, leave the box blank. for those boxes in which you must enter subtractive or negative numbers use a minus sign. (example: -300)

Russell's study compared gpa of those students who volunteered for academic study skills training and those who did not elect to take the training. he found that those who had the training also had higher gpa. with which validity threat should russell be most concerned?