Exhibit s

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) his true and lawful attorney-in-fact and agent, for his on his behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set his hand this 13th day of September 2012.

/s/ John P. Amboian

John P. Amboian

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) his true and lawful attorney-in-fact and agent, for his on his behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set his hand this 13th day of September 2012.

/s/ Terence J. Toth

Terence J. Toth

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) his true and lawful attorney-in-fact and agent, for his on his behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set his hand this 13th day of September 2012.

/s/ Jack B. Evans

Jack B. Evans

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) his true and lawful attorney-in-fact and agent, for his on his behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set his hand this 13th day of September 2012.

/s/ William J. Schneider

William J. Schneider

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) her true and lawful attorney-in-fact and agent, for her on her behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set her hand this 13th day of September 2012.

/s/ Judith M. Stockdale

Judith M. Stockdale

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) his true and lawful attorney-in-fact and agent, for his on his behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set his hand this 13th day of September 2012.

/s/ Robert P. Bremner

Robert P. Bremner

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) his true and lawful attorney-in-fact and agent, for his on his behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set his hand this 13th day of September 2012.

/s/ William C. Hunter

William C. Hunter

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) his true and lawful attorney-in-fact and agent, for his on his behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set his hand this 13th day of September 2012.

/s/ David J. Kundert

David J. Kundert

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) her true and lawful attorney-in-fact and agent, for her on her behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned trustee of the above-referenced organizations has hereunto set her hand this 13th day of September 2012.

/s/ Carole E. Stone

Carole E. Stone

NUVEEN CLOSED-END FUNDS

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director/trustee of the above-referenced organizations listed on Appendix A,, hereby constitutes and appoints KEVIN J. McCARTHY, KATHLEEN L. PRUDHOMME, GIFFORD R. ZIMMERMAN and ERIC F. FESS, and each of them (with full power to each of them to act alone) her true and lawful attorney-in-fact and agent, for her on her behalf and in the Registration Statement on Form N-2 under the Securities Act of l933 and the Investment Company Act of 1940 registering Common Shares, including any pre-effective and post-effective amendments thereto, with all exhibits, and any and all other documents required to be filed with any regulatory authority, federal or state, relating to the registration thereof, or the issuance of shares thereof, without limitation, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same as fully to all intents and purposes as he might or could do if personally present, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned director of the above-referenced organizations has hereunto set her hand this 13th day of September 2012.

/s/ Virginia L. Stringer

Virginia L. Stringer

APPENDIX A

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 2

NUVEEN MUNICIPAL VALUE FUND, INC.