BECAUSE RESOURCES ARE FINITE, EVALUATION OF SUCCESS MAY BEST BE BASED UPON THE EFFICIENCY WITH WHICH RESOURCES ARE EMPLOYED. DUE TO ITS COMPETITIVE NATURE, THE PRIVATE SECTOR - SUPPLYING PREVENTIVE SERVICES AND EQUIPMENT - IS SAID TO BE MORE EFFICIENT IN THIS RESPECT THAN THE GOVERNMENTAL SECTOR. AN ANALYSIS OF CORRECTIONAL COSTS INDICATES THAT MONEY IS NOT BEING EFFICIENTLY SPENT. A SYSTEM IS PROPOSED IN WHICH, UPON CONVICTION OR AFTER SERVING A PREDETERMINED PORTION OF THE SENTENCE, THE OFFENDER WOULD HAVE THE OPTION OF LIVING IN A HALFWAY HOUSE ENVIRONMENT IF HE INDICATED A WILLINGNESS TO MEET SEVERAL CRITERIA. HE MUST MAINTAIN FULL-TIME EMPLOYMENT AT A SOCIALLY ACCEPTABLE OCCUPATION. HE MUST CONTRIBUTE SUBSTANTIALLY TO HIS OWN UPKEEP, SINCE IT IS EXPECTED THAT THE 'HOUSE' WOULD BE LARGELY, IF NOT WHOLLY, SELF-SUPPORTING. FINALLY, HE SHALL BE ABSENT FROM THE 'HOUSE' ONLY DURING SUCH TIMES FOR WHICH HE HAS AUTHORIZATION. SUCH A SYSTEM, IT IS SAID, WOULD MINIMIZE CORRECTIONS COSTS AND MAXIMIZE PRODUCTIVITY.