The phrase "a lack of diversification" is correct and usable in written English.
It can be used when discussing the absence of variety or differences in a particular context, such as finance, business, or investment strategies.
Example: "The company's poor performance can be attributed to a lack of diversification in its product offerings."
Alternatives: "insufficient diversification" or "absence of diversification".
That's a lack of diversification".
There is a lack of diversification of staff.
The performance of ethical funds has shown the effects a lack of diversification can have on returns.
Trends in the previous century had kept unemployment rates fairly high: a lack of diversification in the resource-based economy, high transportation costs, and a decline in manufacturing had reduced opportunities and contributed to significant out-migration.
— Lex Zaharoff, head of the Investment Lab at Citi Private Bank, an in-house portfolio analysis group, suggests that a heavy concentration in bonds comes with its own hazards, starting with a lack of diversification.
"We've had clients who wanted to keep a stock that was part of the family's wealth in memory of their parents, even if it's causing a lack of diversification in the portfolio," said Charles D. Haines Jr., chief executive of Kinsight, a financial advisory firm based in Birmingham, Ala., with $500 million under management.
For the legislator, then, delegation to agencies purchases inter-temporal risk diversification and inter-issue consistency at the price of inter-temporal inconsistency and a lack of risk diversification across issues, while delegation to courts involves the opposite trade-off.
Such a lack of prudent diversification is all too common in 401(k) plans.
A lack of sufficient diversification in research strategies has been identified as an important problem for delegated research.
A lack of economic diversification and infrastructure not only leaves Malawi's extremely poor vulnerable during the rains, but also increasingly vulnerable after the floods recede.
An examination of Gotham's activities in recent years shows a series of ill-timed bets, a surprising lack of diversification and a dangerous concentration in illiquid investments that could not easily be sold when investors wanted their money back.
