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        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>ANDREW BIGGS</NamePerson>
        <BaseCompensationFilingOrg>149120</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>27500</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>21780</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>3246</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>201646</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>TOBY STOCK</NamePerson>
        <BaseCompensationFilingOrg>150700</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>29350</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>16900</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>2606</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>199556</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>DAVID ADAMS</NamePerson>
        <BaseCompensationFilingOrg>147200</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>3000</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>2706</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>152906</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartIII>
        <ReturnReference>PART I, LINE 1A</ReturnReference>
        <Explanation>TRAVEL FOR COMPANIONS: BOARD MEMBERS AND STAFF ARE PERMITTED TO BRING SPOUSES TO THE ANNUAL OFF-SITE MEETINGS, WORLD FORUM AND THE BOARD RETREAT.</Explanation>
      </Form990ScheduleJPartIII>
      <Form990ScheduleJPartIII>
        <ReturnReference>PART I, LINES 4A-B</ReturnReference>
        <Explanation>PAYMENTS WERE MADE IN CALENDAR YEAR 2011 TO CHRISTOPHER DEMUTH AS FOLLOWS: SEVERANCE: $500,000 SUPPLEMENTAL NON-QUALIFIED RETIREMENT 457(F) PLAN: $606,075 457(B) DEFERRED COMPENSATION PLAN: $56,954</Explanation>
      </Form990ScheduleJPartIII>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <SecuritiesPubliclyTraded>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>3</NumberOfContributions>
        <NoncashContribsRptdF990>123729</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>FAIR VALUE</MethodOfDeterminingRevenues>
      </SecuritiesPubliclyTraded>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>ELECTRONIC EQUIPMENT</Description>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>12942</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>FAIR VALUE</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>SOFTWARE</Description>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>81672</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>FAIR VALUE</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <AnyPropertyThatMustBeHeld>0</AnyPropertyThatMustBeHeld>
      <ReviewProcessUnusualNCGifts>0</ReviewProcessUnusualNCGifts>
      <ThirdPartiesUsed>0</ThirdPartiesUsed>
      <Form990ScheduleMPartII>
        <Identifier>NON REPORTING OF REVENUE:</Identifier>
        <ReturnReference>PART I, LINE 33:</ReturnReference>
        <Explanation>DURING FISCAL 2012, AEI RECEIVED STOCK VALUED AT $121,032 IN FULFULLMENT OF A PLEDGE REPORTED IN A PRIOR YEAR ON PART VIII OF FORM 990.</Explanation>
      </Form990ScheduleMPartII>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS REVIEWS THE 990 AND 990T PRIOR TO SUBMISSION TO THE IRS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>AEI REGULARLY AND CONSISTENTLY MONITORS AND ENFORCES COMPLIANCE WITH THE INSTITUTE'S CONFLICT OF INTEREST POLICY, WHICH IS POSTED ON AEI'S WEBSITE, WWW.AEI.ORG/ABOUT. AEI SCHOLARS, FELLOWS, AND OFFICERS ARE REQUIRED TO PROVIDE ANNUAL REPORTS EACH MARCH TO AEI'S PRESIDENT LISTING ALL OF THEIR OUTSIDE ACTIVITIES. THE PRESIDENT THEN PROVIDES A SUMMARY REPORT TO THE NOMINATING AND GOVERNANCE COMMITTEE OF AEI'S BOARD OF TRUSTEES. THE PRESIDENT MAY BRING PARTICULAR ISSUES TO THE ATTENTION OF THIS COMMITTEE OR TO AN INTERNAL COMMITTEE OF SENIOR SCHOLARS AND FELLOWS FOR THEIR REVIEW AND COUNSEL. THE NOMINATING AND GOVERNANCE COMMITTEE ALSO REVIEWS THE COMMERCIAL, PROFESSIONAL, AND CIVIC ENGAGEMENTS OF INDIVIDUALS BEING CONSIDERED FOR ELECTION TO THE BOARD OF TRUSTEES. AEI SCHOLARS AND FELLOWS ARE ALSO REQUIRED TO DISCLOSE IN THEIR PUBLISHED WORK ANY AFFILIATIONS THEY MAY HAVE WITH ORGANIZATIONS WITH A DIRECT INTEREST IN THE SUBJECT OF THAT WORK. WHEN MAKING HIRING DECISIONS TO AEI'S STAFF OR WHEN NOMINATING NEW MEMBERS TO AEI'S BOARD, AEI'S EXECUTIVE TEAM AND BOARD OF TRUSTEES STRESS TO CANDIDATES THE IMPORTANCE OF HONESTY AND INTEGRITY IN THEIR WORK. NEW EMPLOYEES ARE GIVEN A COPY OF AEI'S CONFLICT OF INTEREST POLICY.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15A</ReturnReference>
        <Explanation>AEI FOLLOWS THE FOLLOWING PROCESS FOR DETERMINING COMPENSATION, AS STATED IN THE INSTITUTE'S BYLAWS: THE COMPENSATION OF THE INSTITUTE'S PRESIDENT AND SECOND SENIOR OFFICER SHALL BE RECOMMENDED BY THE EXECUTIVE COMMITTEE AND REVIEWED AND REVISED AT INTERVALS THE COMMITTEE DEEMS APPROPRIATE. THE LEVEL OF AND ANY ADJUSTMENTS TO THE PRESIDENT AND SECOND SENIOR OFFICER'S COMPENSATION SHALL BE GUIDED BY THE FOLLOWING FACTORS: (A) THE INTRINSIC QUALITY OF THEIR MANAGEMENT, INTELLECTUAL LEADERSHIP, AND PUBLIC REPRESENTATION OF THE INSTITUTE; (B) THE INTRINSIC QUALITY AND PUBLIC REPUTATION OF THE INSTITUTE'S RESEARCH, PUBLICATIONS, AND OTHER OUTPUTS AND THE QUANTITY AND EFFECTIVE DISSEMINATION OF THAT OUTPUT; (C) THE INSTITUTE'S FINANCIAL PERFORMANCE AND STABILITY; (D) THE COMPENSATION OF OTHER CHIEF EXECUTIVES WITH SIMILAR EXPERIENCE; (E) THE COMPENSATION OF CHIEF EXECUTIVES OF OTHER, SIMILAR ORGANIZATIONS; (F) COMPETITIVE CONSIDERATIONS RELEVANT TO THE RETENTION OF THE PRESIDENT AND SECOND SENIOR OFFICER AND THEIR LONG-TERM COMMITMENT TO THE INSTITUTE; (G) THE PRESIDENT AND SECOND SENIOR OFFICER'S SALARY HISTORY; AND (H) ADDITIONAL, SIMILAR FACTORS THE EXECUTIVE COMMITTEE DEEMS APPROPRIATE. THE EXECUTIVE COMMITTEE SHALL MAINTAIN RECORDS OF ITS REVIEWS OF THE PRESIDENT AND SECOND SENIOR OFFICER'S COMPENSATION AND THE REASONS FOR ANY ADJUSTMENTS IT MAY RECOMMEND TO THAT COMPENSATION, AND SHALL INFORM THE BOARD OF TRUSTEES AT LEAST EVERY TWO YEARS OF ITS EVALUATION OF THE PRESIDENT AND SECOND SENIOR OFFICER'S PERFORMANCE AND ANY REVISIONS IT HAS MADE TO THE THEIR COMPENSATION FOR APPROVAL BY THE FULL BOARD OF TRUSTEES. SECTION 2. THE COMPENSATION OF THE INSTITUTE'S OFFICERS AND MANAGERS, SCHOLARS AND FELLOWS, RESEARCH AND ADMINISTRATIVE STAFF, AND ALL OTHER EMPLOYEES SHALL BE DETERMINED BY THE PRESIDENT AND REVIEWED AND REVISED AT INTERVALS THE PRESIDENT DEEMS APPROPRIATE. THE LEVEL OF AND ANY ADJUSTMENTS TO THE COMPENSATION OF THE INSTITUTE'S EMPLOYEES SHALL BE GUIDED BY FACTORS SIMILAR TO THOSE USED BY THE EXECUTIVE COMMITTEE IN DETERMINING THE PRESIDENT'S COMPENSATION, AS APPLIED TO THE PARTICULAR RESPONSIBILITIES OF EACH EMPLOYEE. THE PRESIDENT SHALL MAINTAIN RECORDS OF REVIEWS OF AND ANY ADJUSTMENTS TO THE COMPENSATION OF THE INSTITUTE'S EMPLOYEES AND SHALL PROVIDE TO THE EXECUTIVE COMMITTEE, AT LEAST EVERY TWO YEARS, A REPORT ON THE INSTITUTE'S COMPENSATION POLICIES AND STRUCTURE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>AEI'S ORGANIZATION AND PURPOSES AND STATEMENTS ON RESEARCH INTEGRITY, PUBLIC ADVOCACY, POLITICAL CAMPAIGNS AND OTHER PARTISAN ACTIVITIES, OUTSIDE ACTIVITIES, AND CONFLICTS OF INTERESTS ARE POSTED AND UPDATED REGULARLY ON THE INSTITUTE'S WEBSITE. AEI'S ANNUAL REPORT, AUDITED FINANCIALS, AND 990 ARE AVAILABLE TO THE PUBLIC.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
        <Explanation>NET UNREALIZED LOSSES ON INVESTMENTS: -6,139,183.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>