We are discussing economics here. It is not unreasonable to inject some economic theory.
Increasingly economists in the US and Canada are embracing an economic theory developed by the institutionalist school of economics, the
dual labour market hypothesis. The hypothesis is that there are two distinct labor markets in a modern, developed economy. The first is a core labor market that ...
... corresponds to the core economy, where wages and productivity are relatively high, as are the requirements and the costs of labor training, as well as the costs of monitoring of the work. Within this economy, there is a well-structured wage or salary scale, where experience and seniority are given prominence, and there can be a high degree of unionization. Also, each organization within the core economy tries to develop a sense of affiliation among its staff and workers. The other labour market is the peripheral one, where little training is required, where the monitoring of work is inexpensive, and where wages are systematically low. In the organizations of the peripheral economy, the turnover of employees is often encouraged.
Marc Lavoie, Post-Keynesian Foundations, New Foundations, 2011, Edward Elgar Publishing, pages 293-294
This is an example of a heterodoxical economic theory making inroads into mainstream orthodoxy. The reason is obvious, the dual labor market hypothesis is a better description of the reality of our modern economy than the theory it is displacing.
Neoclassical, mainstream, neoliberal, Austrian/Libertarian, classical economics all view the labor market as a single, unified market like the market for apples, where the workers offer their labor and employers competitively bid wages and benefits to attract their needed workforce. As is the case with apples, the lower the price the more consumers can buy. Wages are the price of labor so the lower the wages the more workers will be hired. Conversely, the higher wages are the fewer workers will be hired. The reason for differences in wages is because of differences in human capital; schooling, experience, skills, temperament and tastes, in other words, all of the differences in wages are due to the characteristics of the supply side, of the workers.
In the dual labor market theory, the demand side characteristics of the employers are as important or more important than the supply side characteristics of the employees in explaining the differences in compensation. The demand side characteristics are things like norms in retaining workers, wage scales in the company, promotion norms, etc. Even the attitude toward how much revenue is paid in dividends to the shareholders and how much goes toward increased wages. How paternalistic the company is to their employees. How much a single company dominates their labor market. How willing the company is to relocate new hires.
This dual labor market hypothesis is just one example of a more generalized tool of economics,
labor market segmentation, which further divides the labor market by geographic location, by industry, by local education availability, even by race and gender, etc.
The natural conclusion of this constant subdividing of the labor market has to be the point that the post-Keynesians reached a long time ago, that the labor market doesn't exist in any meaningful way,
- that it doesn't resemble a market, that wages are not set by the supply and demand for labor but by norms in hiring, promotion, seniority, and retention,
- that wages are vastly more important to the economy than just being the price of labor and a cost of production because they fund the effective demand that now drives the economy,
- that market forces can't drive down the wages for existing employees because employees react badly to having their wages lowered to do the same work,
- that labor is not a commodity, it can't be stored or separated from its supplier,
- that labor not used is lost forever,
- that labor productivity generally improves with use and depreciate with idleness.
- that the productivity of labor depends on the health and motivation of the workers,
- that wages are set by the relative negotiating power of the employees and the employer and that the employees' negotiating power is less ...
- because the employee usually can't bear the costs of relocating to a better job opportunity,
- because so much work now requires specialization that a worker becomes bound to one industry and one employer in most areas.
- because the employee can only increase their negotiating power by collective action rather than as an individual,
- because having a job is much more important to the employee than having an employee is to the employer.
In economic terms, the demand for and the supply of labor are not well behaved, regular functions. That opposed to other markets the labor market is controlled largely by normative forces like customs and concern for equity rather than the non-normative (anomic?) forces that prevail in a commodity market.
This doesn't even list the pressures applied by the government to tip the scale toward the employer in this the age of neoliberalism. The emphasis on preventing inflation instead of pursuing full employment. The eroding of support for organized labor. The championing of right to work laws. The bogus legal requirement that the sole purpose of a corporation is to make money for its shareholders. The support for globalization, for free trade, for capital and intellectual property flight. The lack of prosecution of corporations and individuals illegally off-shoring profits and income. The establishment of banks too big to fail and of bankers too important to jail. The tax breaks for relocating production facilities to low wages areas. The idea that a corporation is a person making decisions independently of the real people in the management. The obstinate support for the 40 hour work week and opposition to increasing holidays, to maternity leave, to increasing the minimum wage, to employer-funded health care, to defined benefit pensions, and many others.