This is a petition for review under the State Administrative Procedure Act, G. L. c. 30A, § 14, 1 of two decisions of the State racing commission, dated January 30, *696 1961, one granting a license to the petitioner (Bay State) to conduct pari-mutuel harness racing for fifty-seven days in 1961 and one granting a license to Eastern Racing Association, Inc. (Eastern), to conduct thirty-three days of such 1961 racing. The commission (see G. L. c. 6, § 48, as amended through St. 1955, c. 730, § 2) considers applications (see G. L. c. 128A, § 2, as amended through St. 1959, c. 295, § 1) for licenses to conduct racing meetings and, “after ... a public hearing in the . . . town wherein the license is to be exercised, may issue a license to the applicant.” G. L. c. 128A, § 3, as amended through St. 1959, c. 295, § 2. General Laws c. 128A, § 3 (j), as amended by St. 1946, c. 575, § 4, 2 provides that no “licenses shall be issued for more than an aggregate of ninety racing days in any one year at the harness horse racing meetings combined.” 3
Bay State in its petition alleges the granting of 1961 licenses as outlined above; that the commission refused “to grant or renew” Bay State’s “license for a greater number of days as applied for”; and that under G. L. c. 30A, § 14, such action constitutes a final decision of the commission in an adjudicatory proceeding. To show that Bay State is aggrieved, Bay State in its petition relies upon the circumstance that the commission refused Bay State’s request for a license to conduct harness racing for more than fifty-seven' days and that the “granting of a license to Eastern for thirty-three racing days precluded . . . [the commission] from granting . . . [Bay State] a license for more than fifty-seven racing days.” It is alleged also that “the granting of the license to Eastern has worked and will continue to work economic injury to . . . [Bay State] as a competitor of Eastern in the same narrow market by decreasing the attendance of patrons and making unavailable many standard bred harness horses.”
The petition also alleged the following facts. Bay State introduced harness racing in Massachusetts in 1947 and *697 thereafter has conducted such racing each year. It has built in Foxborough expensive facilities which “are usable only for such purpose.” In the initial years Bay State “suffered operating losses due to the unfamiliarity of the racing public . . . with night harness . . . racing.” Bay State persistently tried to improve the quality of its meetings and reinvested earnings in improving its facilities. “As a result of its efforts . . . alone . . . [Bay State] has succeeded in popularizing the sport . . . and has succeeded in making ... its track profitable. In 1959 . . . [Bay State] conducted a . . . meeting under a license . . . lasting sixty-seven days.” In 1960, the commission cut Bay State’s license to fifty-seven days and then “made no findings. . . to justify depriving . . . [Bay State] of the ten days which it lost in that year. Its decision in 1961,” the petition avers, “continues its [1960] decision . . . and . . . is based upon an error of law, unsupported by substantial evidence, and unwarranted by the facts on the record, as well as being arbitrary, capricious, and an abuse of discretion.” Bay State contends that in “refusing to renew licenses for harness . . . meetings, . . . [the commission] is required,” under GK L. c. 30A, §§ 11 (8) and 13, “to make appropriate findings to justify the refusal, and refusal to grant a license . . . for a period . . . equal to the period of the previous year’s license constitutes such a refusal.”
“In 1958 Eastern, which had theretofore been conducting running . . . racing ... at its track [Suffolk Downs] . . . applied . . . for a license to hold a harness . . . meeting of twenty-three days.” This application was denied in 1958, but was granted in 1959 on substantially the same evidence. The 1959 decision, it is averred, was unsupported by substantial evidence, arbitrary, and capricious, and the 1961 decision “continues the 1959 decision and is . . . defective upon the same grounds.”
The petition prays that the 1961 license to Eastern “be set aside” and that the commission “be ordered to reconsider . . . [Bay State’s] application . . . for ten [additional] days of . . . racing”; that the.court declare that *698 the commission in granting licenses for increased days of racing “is required to give consideration to and make appropriate findings in respect to the adequacy of existing facilities for such meetings and the economic injury which existing licensees would sustain in connection with ... increased licenses.”
The commission filed a demurrer on the grounds (1) that the petition “does not set forth facts . . . sufficient to entitle . . . [Bay State] to [court] review”; (2) that Bay State “is not a person entitled to review”; (3) that Bay State is not “aggrieved” within G-. L. c. 30A, § 14; and (4) that the petition is multifarious in seeking to review the action of the commission in granting two separate licenses. Its demurrer was also directed specially to certain specific allegations mentioned below.
The petitioner appeals from an interlocutory decree sustaining the demurrer and a final decree dismissing the petition.
1. General Laws c. 128A, § 3, permits the commission to grant a license after the required public hearing. Section 11 purports to give the commission “full discretion to refuse to grant a license to any applicant for a license or to suspend or revoke the license of any licensee. If any license is suspended or revoked, the commission shall . . . record ... its reasons . . ..” In
Landers
v.
Eastern Racing Assn. Inc.
*699
We think that c. 128A contemplates that the commission, although given a broad discretion in granting licenses (see
Bay State Harness Horse Racing & Breeding Assn. Inc.
v.
State Racing Commn.
2. Judicial review may be obtained under G. L. c. 30A, § 14, by any person aggrieved by a final decision of an agency “in an adjudicatory proceeding.’’ The commission is an “agency” within the meaning of c. 30A, § 1 (2), for i't is a “commission ... of the state government, authorized
*701
by law to make regulations.” An application for a racing license is an “adjudicatory proceeding” under § 1 (1) for it is “a proceeding before an agency in which the legal . . . privileges of specifically named persons [the applicants] are required by . . . [a] provision of the General Laws [G. L. c. 128A, § 3] to be determined after opportunity for an agency hearing.
’ ’
See discussion in 1954 Ann. Surv. Mass. Law 126, 135-136. Cf.
Hayeck
v.
Metropolitan Dist. Commn.
The provisions of c. 30A, when read with those found in c. 128A, amply establish that it is the duty of the commission to make adequate subsidiary findings of fact to support its decision (see analogy of
Herson’s Case,
3. Bay State is a person aggrieved by the denial of its request for a license for the extra ten days of racing which it sought. It properly could apply for them and is adversely affected by the denial of the application. See
American Can Co. of Mass.
v.
Milk Control Bd.
In Massachusetts, the closest case is
A. B. & C. Motor Transp. Co. Inc.
v.
Department of Pub. Util.
*703 In this type of situation the comparative appraisal of competitors is essential. Accordingly, we apply the Ash-backer case. We hold that Bay State is an aggrieved person entitled to present for judicial review not only the commission’s denial of its own application but also the commission’s action in granting Eastern a license which would preclude issuing the full license sought by Bay State.
4. What has already been said disposes of the ground of demurrer that Bay State “is not a person entitled to review” or “aggrieved.” It also disposes of the contention that the petition is multifarious (cf.
Laverty
v.
Associated Gas & Elec. Sec. Co. Inc.
5. The first ground of demurrer was that the petition did not set forth facts entitling Bay State to judicial review of the commission’s decisions. Bay State’s general allegation that the commission’s decisions were arbitrary and capricious, standing alone, does not present a basis for review. See
Criscuolo
v.
Department of Pub. Util.
Bay State’s allegations of fact set out the conflict between its application and that of Eastern with respect to the disputed ten days of racing. Under c. 30A, § 11 (8), Bay State was entitled to have the commission make adequate findings with respect to each issue of fact (including those specifically mentioned in the petition for review) bearing upon a fair comparison between Bay State and Eastern. The commission was required to state in its decision why, in the public interest, it resolved the conflict as it did, and to find the facts upon which it relied in making that decision. As to the issues specifically mentioned in the petition for review, a fair comparison of the facilities of each applicant was required. It also might be relevant to a decision whether denial of ten days of racing to one or the other applicant would so adversely affect its investment or economic standing as to impair its ability to continue to serve the racing public properly or would be otherwise disadvantageous to the public.
The commission, under c. 128A, § 11, had wide discretion in determining the weight it would give to these and the numerous other matters appropriate for consideration. It was bound, however, in reaching its decision to comply with c. 30A, § 11 (8). The petition for review adequately alleged facts showing noncompliance. The demurrer cannot be sustained on the first ground.
6. Much the same considerations apply to the special demurrer to specific paragraphs of the petition for review. These paragraphs somewhat circuitously allege (a) that the commission’s decision in 1959, giving Eastern twenty-three days of racing, and its decision in 1960, giving Eastern thirty-three days of racing, were “based upon an error of law, unsupported by substantial evidence,” and (b) that the 1961 decision continued the earlier decisions and was itself defective on the same grounds. We construe these allegations as asserting merely that the 1961 decision itself was erroneous, and as referring to the 1959 and 1960 decisions,
*705
not in an attempt to review them (for they are now moot, see
Bay State Harness Horse Racing & Breeding Assn. Inc.
v.
State Racing Commn.
7. The interlocutory decree sustaining the demurrer and the final decree are reversed. The case is remanded to the Superior Court for further proceedings consistent with this opinion.
So ordered.
Notes
Section 14, inserted by St. 1954, c. 681, § 1, reads in part, “Except [exception not pertinent] . . . any person . . . aggrieved by a final decision of any agency in an adjudicatory proceeding . . . shall be entitled to a judicial review thereof .... (2) The petition [for review] . . . shall include a concise statement of the facts upon which jurisdiction and venue are based, facts showing that petitioner is aggrieved, and the . . . grounds specified in paragraph (8) . . . upon which petitioner contends he is entitled to relief. . . . (8) The court . . . may set aside or modify the decision ... if it determines that the substantial rights of any party may have been prejudiced because the agency decision is —. . . (c) Based upon an error of law; or . . . (e) Unsupported by substantial evidence; or . . . (g) Arbitrary or capricious, an abuse of discretion, or otherwise not in accordance with law. The court shall make the foregoing determinations upon . . . the entire record, or such portions of the record as may be cited by the parties. ...”
Later amendments of § 3 do not affect clause (j).
Hot including meetings at State or county fairs and subject to various restrictions not relevant.
Bay State argues that failure to grant in one year an annual license, similar to one which an applicant has held in a prior year, is in effect a refusal to renew the prior license within the meaning of G. L. c. 30A, § 13, and in some respects comparable to a revocation of a license under c. 128A, § 11. This question we need not decide. Nevertheless, the two sections just cited may have some tendency to indicate by analogy that, in the granting and revocation of licenses, the fact that a licensee has previously held and acted properly under a similar license is a factor to be weighed with other factors.
