NEW YORK (TheStreet) -- Here are 10 things you should know for Monday, Aug. 18: 

1. -- U.S. stock futures were rising Monday and European stocks staged a rebound as tensions between Russia and the Ukraine appeared to ease.

Asian stocks ended Monday's session mixed.

2. -- The economic calendar in the U.S. on Monday includes the NAHB Housing Market Index for August at 10 a.m. EDT.

3. -- U.S. stocks on Friday finished mixed but ended the week higher as fears about Russia-Ukraine were balanced by signs that the U.S. economy appears to be on track for a solid, sustained recovery. 

The S&P 500 declined 0.01% to 1,955.06 on Friday, closing the week more than 1% higher. The Dow Jones Industrial Average fell 0.3% to 16,662.91, but added 0.66% for the week. The Nasdaq ticked up 0.27% to 4,464.93 on Friday to gain more than 2% for the week.

4. -- Dollar General (DG) - Get Report offered to buy Family Dollar (FDO) for $9.7 billion, topping a bid from Dollar Tree (DLTR) - Get Report .

Dollar General said Monday that it would pay $78.50 a share in cash; Family Dollar shares closed Friday at $76.06.

Dollar Tree last month made a bid of $8.5 billion dfor Family Dollar. It offered to pay $59.60 in cash and the equivalent of $14.90 in shares of Dollar Tree. The companies put the value of the transaction at $74.50 a share.

5. -- Central bankers, policy experts and academics from around the world meet later this week at Jackson Hole, Wyo., for an annual talkfest.

Federal Reserve Chair Janet Yellen's speech Friday on the U.S. labor market is expected to "reiterate her views that slack remains substantial, and that the Fed should keep monetary policy accommodative still in order to address that," Mihuzo Bank said in a commentary.

6. --Electric car maker Tesla (TSLA) - Get Report  extended the drive-unit warranty for its Model S sedan to eight years and unlimited miles.

The drive-unit warranty, now matching that for the battery pack, will apply retroactively to all Model S vehicles and all owners. Tesla CEO Elon Musk said in a blog posting Friday that the move reflects the company's belief that electric motors are more reliable than gasoline engines.

He wrote that the warranty extension will have "a moderately negative effect" on the company's earnings in the short term as its reserves to cover warranties are increased.

7. -- More than half of Target's (TGT) - Get Report U.S. stores will remain open later.

The typical Target store opened at 8 a.m. and closed at 10 p.m. on weekdays and Saturdays and at 9 p.m. on Sundays. The new hours will keep stores open until 10 p.m. or 11 p.m. on Sundays and until 11 p.m. or midnight on other days, The Wall Street Journal reported. 

A decline in traffic and same-store sales at Target has gone on for more than a year, the Journal noted.

8. -- Wall Street expects struggling electronics retailer RadioShack (RSH)  on Monday to report a second-quarter loss of 66 cents a share on revenue of $735.9 million.

Much-needed financing from hedge fund Blue Crest Capital Management could be RadioShack's last best hope for buying time to effect a turnaround.

9. -- Dendreon (DNDN) is forecast to post a fiscal third-quarter loss of 20 cents a share.

Shares of Dendreon, the maker of prostate-cancer drug Provenge, plunged to a 52-week low last week after the company warned of "significant risk" it would not be able to pay its debt that matures in 2016.

The stock closed Friday at $1.40. 

10. -- Clothing retailer Urban Outfitters (URBN) - Get Report is expected by analysts to post second-quarter earnings of 49 cents a share on sales of $807.5 million.

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