Mobility of labor is higher when there are alternative jobs in the same location. This means that if workers have access to multiple job opportunities in the same geographical location, they are more likely to move between jobs in search of better wages, working conditions, and job security. This leads to increased labor mobility, as workers have more options to choose from, and employers have to compete for workers by offering better wages and benefits. On the other hand, when there is a monopoly of jobs in one location or no alternative jobs in the same location, workers may be reluctant to move due to the lack of job opportunities, which leads to lower labor mobility.