OPINION/ COMMENTARY/ LETTERS; EDITORIALS economy. In ew Yor City, for ex­ ample, the cost of a taxicab medallion is more th n S70,(XX); as result, few Blacks in e' Yor own taxis. By contr st, Washington, D.C., has many Black-owned taxis because of the city's low entry cost. Home-occupation ordina - ce are playing an increasing significant role in keeping B lacks poor. The city of Chicago, for example, puts severe restrictions on home- d wor including a prohibi­ tion on networ ing between home nd office computers. While some of the restricti ns are seldom enforced, they act as a deterrent to would-be entrepreneur and could be used by an e tabli hed busin to wrad off fled lin com­ petitor . With s man as 3 per­ cent of Ie propri l r hips and 73 percent f female-owned busine e operatin out of ne' hom. th implica- tions for Bl c - and par­ ticul rl Black fe al -headed househ 1 - arc nsiderabl.