How lack of innovation leads to unemployment
Some believe that robots will take over all our jobs and therefore innovation (specifically in the area of robots) will cause unemployment. But in reality, it's the other way around.
You may be familiar with the product life cycle diagram. Every product (and when I say "product" I also include service, process, or business model) has a life cycle, typically considered to have 4 stages:
Introduction: when the product is introduced
Growth: when the sales grow at the fastest rate
Maturity: when the product reaches mass market
Decline: when new products start to take over
The investment in innovation (specifically, research and development) is highest during the introduction stage and the first part of the growth stage. Revenue is the lowest, as very few customers decide to buy this early in the product life cycle (typically referred to as "innovators" or "early adapters"). Profit, therefore, is the lowest due to both low revenue and high investment in development.
The new product starts to turn a per-unit profit only at the later part of the growth stage, as investment in development declines and revenue increases as more (and less risk-taking) customers hear about the product and decide to buy.
However, this is per-unit profit, and doesn't yet account for the significant loss incurred earlier due to the investment in research and development done at the introduction stage and the early part of the growth stage.
The overall break-even that includes the early loss (and investment) only takes place well into the maturity stage, and carries into the decline stage. In fact, some might say that the decline stage is the most profitable as there is almost no investment in the product anymore. No new features, no new versions, no new services, just fulfilling demand that has all but gone.
While cumulative profitability only starts during the maturity stage, the per-unit profitability declines, as more and more competitors enter the market with similar products (or services), and the main differentiator becomes the price. But that's OK, because the market for the new product is the largest it has ever been and thus cumulative profits continue to grow.
As a result, more and more companies decide to take a shortcut. Instead of spending money on innovation at (and prior to) the introduction stage, they enter the market with a similar product, a copy of the product made by the first company to develop it. They don't expect the large per-unit profit that the first producer made during the growth stage. They settle for the much lower profits gained during the maturity stage.
Unfortunately, more and more companies take this shortcut. Consequently, less and less is spent on research and development. Not only in terms of money, but in terms of letting employees spend their time on innovation and encouraging experimentation (and failure).
In fact, the focus on short-term profitability leads to a maniacal focus on efficiency and reductions in force, and therefore unemployment. The first jobs to go are not those which are required for production (and hence could be replaced by robots). The first jobs to go are those related to innovation and long-term strategy. You know, those jobs that cannot be replaced by robots.