Dismissal or firing is generally thought to be the fault of the employee, whereas a layoff is generally done for business reasons (for instance a business slowdown or an economic downturn) outside the employee's performance.
Australian Unions. In Australia, a union is sometimes referred to as a trade union or a labour union. A union is an organisation of workers or employees who have joined together to achieve common goals. These goals can include seeking higher pay and better working conditions, fighting for job security and protecting the integrity of a trade.
Union shop. A union shop, also known as a post-entry closed shop, is a form of a union security clause. Under this, the employer agrees to either only hire labor union members or to require that any new employees who are not already union members become members within a certain amount of time. Use of the union shop varies widely from nation to nation, depending on the level of protection given trade unions in general.