(11) Income Taxes:

The following is a reconciliation of the provision for income taxes computed at the federal statutory rate to income taxes computed at the effective rate:



	For the three months ended
	March 31,

	2017		2016

Consolidated tax provision at federal statutory rate	35.0	%	35.0	%
State income tax provisions, net of federal income
tax benefit	0.2		3.8
Tax reserve adjustment	(0.6)		-
Shared-based payments	(1.8)		-
Federal research and development tax credit	0.9		-
All other, net	0.5		(0.1)
Effective tax rate	34.2	%	38.7	%

Income taxes for the three months ended March 31, 2017 include the impact of $2 million of income tax expense resulting from the adoption of ASU No. 2016-09, “Improvements to Employee Share-Based Payment Accounting.”

Amounts pertaining to income tax related accounts of $51 million and $55 million are included in “Income taxes and other current assets” in the consolidated balance sheets as of March 31, 2017 and December 31, 2016, respectively.

In February 2017, we received a state income tax refund of $3 million.