Focusing works best (1) when it is costly or difficult for multisegment competitors to meet the specialized needs of the niche, (2) when no other rival is attempting to specialize in the same target segment; (3) when a firm doesn't have enough resources to pursue a wider part ofthe total market; and (4) when the industry has many different segments, thereby allowing a focuser to pick
an attractive segment suited to its strengths and capabilities.