Light pollution is caused by inefficient or unnecessary use of artificial light. France's inefficient and antiquated financial system could not finance this debt. Underpowered air conditioning system will lead to power wastage and inefficient usage. Many also argue that subsidized monopolies tend to be corrupt and inefficient. A derivative suit is slow, inefficient, risky and potentially expensive. The resulting system is overly complex and very inefficient. Tariffs are more inefficient than consumption taxes. Librarians considered that grand design inefficient, and too expensive to maintain. This makes this reduction reaction rather inefficient. Fragmenting such monopolies is by definition inefficient. Turbofans were invented to circumvent the undesirable characteristic of turbojets being inefficient for subsonic flight. Early jet aircraft used turbojet engines that were relatively inefficient for subsonic flight. He publicly warned that Chinese workers were inefficient and racially inferior. It was designed as a replacement for a notoriously inefficient template called <nowiki></nowiki>. This led to funding difficulties and inefficient corporate regulation.