A look back at some of the biggest small business and start-up stories from the past week, with a focus on Washington.

SBA Administrator to leave vacant cabinet seat: Karen Mills will step down at the end of next month, potentially leaving the agency leaderless for some time as the administration searches for a successor.

IRS says private firms were not targeted: The nation’s top tax official says there is no evidence the improper auditing criteria used to evaluate nonprofits was ever used to screen businesses.

Small business lobby heavily funded by Microsoft: A technology lobbying group that says it fights for the interests of small businesses is largely funded by tech giants, a new report shows.

Mounting concerns over health care law: Despite a reprieve from some of the law’s new rules under the health care law, business owners are growing increasing anxious about its looming implementation.

Health insurance firm exits new small business market: Anthem Blue Cross last week announced it won’t participate in California’s new small business exchange when it opens later this year.

Obama moving forward on new trade agreements: The administration is working on new partnerships with Europe and parts of Asia, but the negotiations could get tricky in Congress.

Small business hiring remains slow: Small firms slimmed down for the second straight month in June, even as the economy expanded, according to the National Federation of Independent Business.

Higher wages not yielding higher productivity: In years past, higher wages generally translated into higher worker productivity, but that correlation has started to break down.

What are you keeping an eye on this week? Please let us know below.

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