More Videos:

Dollar General Affirms Interest in Family Dollar Merger After Antitrust Stumble

Tickers in this article: DG FDO

NEW YORK (TheStreet) -- Dollar General isn't walking away from its $78.50-a-share cash offer for Family Dollar , even after the company's bid was rejected earlier in August on antitrust grounds. Family Dollar continues to favor a lower-priced merger offer from competitor Dollar Tree , which Family Dollar said carries lower regulatory risks and was negotiated after a thorough six-month sale process.

Even so, Dollar General said on Thursday it isn't backing down from its offer.

"[We] remain firmly committed to the acquisition," Dollar General said of its proposed merger with Family Dollar. Dollar General believes that in addition to offering a higher price, its proposed merger simply makes more sense financially. Antitrust hurdles, the stumbling point in Dollar General's bid for Family Dollar, are manageable, the company said.

Read More: Trian Management Key in Family Dollar and Dollar General Battle

"The financial benefits of our offer to Family Dollar shareholders are indisputable, and the proposed combination would unlock tremendous value for Dollar General shareholders," Dollar General said in a Thursday press release appended to earnings.

WATCH: More market update videos on TheStreet TV

"We continue to believe the potential antitrust issues are manageable and that our transaction as proposed is both superior and achievable," the company concluded.

Dollar General on Thursday reported slightly disappointing second-quarter earnings, and missed analysts' estimates on sales. Second-quarter sales at the discount retailer rose 7.5% to $4.72 billion, slightly below estimates of $4.77 billion. Earnings per share were 83 cents, meeting forecasts.

Comparable same-store sales increased 2.1% for the quarter, as a result of rising customer traffic and transaction volumes. Gross profit fell 53 basis points in the quarter, as a result of discounting across the retail sector. Dollar General, like Family Dollar, believes it offers consumers everyday low prices on household and food goods. Family Dollar is currently investing heavily in promotional activity, as the company tries to become more competitive on price with Dollar General, which has taken market share in recent quarters.

For the full year, Dollar General expects sales to rise between 8% and 9% from 2013 levels, with same-store sales rising between 3% and 3.5%. Adjusted diluted EPS for the fiscal year is expected to be approximately $3.45 to $3.55.

Dollar General didn't repurchase shares in the second quarter, as it continues to press its acquisition of Family Dollar.

Read More: Family Dollar's Lost Way Leads to Peltz and Icahn

-- Written by Antoine Gara in New York

Follow @AntoineGara</a