caption: unions, unions and unions, union contracts, unions and unions, unions and unions
exif: {"Image DocumentName": "Types of union security models", "Image ImageDescription": "A closed shop employs only people who are already union members. The compulsory hiring hall is the most extreme example of a closed shop\u2014in this case the employer must recruit directly from the union. A union shop employs non-union workers as well, but sets a time limit within which new employees must join a union.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}