The additional benefit of producing one more roast beef sandwich at a local deli is
$2. The additional cost of producing one more roast beef sandwich is
$3. To improve allocative efficiency producers should produce at least one more roast beef sandwich because
MB>MC. producers should produce at least one more roast beef sandwich because
MC>MB. producers should not produce one more roast beef sandwich because
MB>MC. producers should not produce one more roast beef sandwich because MC
>MB.