reason for the increase vs reason of the increase

Both 'reason for the increase' and 'reason of the increase' are commonly used phrases, but 'reason for the increase' is more widely accepted and preferred in English. 'Reason for the increase' is the proper and more common phrase to explain why an increase occurred.

Explained by Gregg
Editor at TextRanch

Last updated: February 28, 2025 • 6153 views

This phrase is correct and commonly used in English.

"reason for the increase"

This phrase is used to explain the cause or motive behind an increase in something.

Examples:

Can you explain the reason for the increase in prices?
The report will analyze the reason for the increase in sales.
Understanding the reason for the increase in demand is crucial.
She investigated the reason for the increase in accidents.
We need to identify the reason for the increase in expenses.

Show examples from the web [+]

QPANI argues that the reason for the increase in aggregate production in Northern Ireland from 2004 to 2007 was a result of increased construction activity within the province.
The main reason for the increase was the growth in autonomous factors, by 39 %, to Euros 380 billion.
Despite acknowledging that the main reason for the increase in doping is excessive commercialisation, the Commission is doing nothing to combat it.
The reason for the increase in the use of child soldiers is also due to the nature of modern warfare: most of today's armed conflicts are civil wars.
The investigation revealed that the main reason for the increase of the production capacity between 2011 and the IP with 12,5 % was the entry into the solar glass market of one company.
Tibet's exiled spiritual leader, the Dalai Lama, has blamed hard-line Chinese policies, which he describes as 'cultural genocide', as a reason for the increase.
The main reason for the increase in miscellaneous operating revenues compared with last year is the increase in exchange gains (see below).
The main reason for the increase was the continued growth in average reserve requirements, by 14 %, to Euros 187.4 billion, which was only partially offset by a decrease in autonomous factors of 2 % to Euros 252.2 billion.
Studies have shown that one reason for the increase in the use of psychopharmaceuticals is the influence exerted on both doctors and patients by the pharmaceuticals industry: doctors who have been approached by the pharmaceuticals industry are more likely to prescribe its products.
I understand that they have initiated research on the problem and will look at the reasons for the increase in the doses.
This decrease is one of the main reasons for the increase in the overall liability.
Other reasons for the increase are the continued phasing-in of the compensation to sugar beet producers in EU-15 (+EUR 184 million)...
In the cereals sector there are various different reasons for the increase in prices.
There has also been much talk of the effect of diverting agricultural produce to the production of biofuels as one of the main reasons for the increase in food prices.
The reasons for the increase in prices are vague, and one can no longer talk about the trends of the agricultural produce market.
One of the reasons for the increase appears to be the enormous rise in personal injury awards involving claims-management companies, which were allowed under the previous UK Labour government to advertise on television.
Such recent changes in the product mix are one of the reasons for the increase of the average unit sales prices of the Union industry.
What are the reasons for the increase in imports in this case?
Other reasons for the increase in carry-overs were that the partner countries were often very late in sending their final requests for reimbursement and that the Agency encountered difficulties in meeting payment deadlines.
The reasons for the increase in production and capacity in 2000 and 2001 are explained in recital (61).

Alternatives:

cause of the increase
explanation for the increase
motive behind the increase
source of the increase
factor contributing to the increase

This phrase is not commonly used in English. 'Reason for the increase' is the preferred expression.

"reason of the increase"

Show examples from the web [+]

I believe this should be done by both these institutions and also by the Council, which will have the greatest problems simply by reason of the increase in the number of its members.
The exact reasons of the recent increases in bee mortality are still unclear.
As quarterly government accounts are not yet available, checking the reasons of the observed increase is not possible.
Indication of e.g. of delays, problems for new infrastructure or of the reasons of the increase in technical transmission capacity at a cross-border point in the absence of investment projects in new pipelines.
Such recent changes in the product mix are one of the reasons for the increase of the average unit sales prices of the Union industry.
The investigation revealed that the main reason for the increase of the production capacity between 2011 and the IP with 12,5 % was the entry into the solar glass market of one company.
One of the reasons for the increase appears to be the enormous rise in personal injury awards involving claims-management companies, which were allowed under the previous UK Labour government to advertise on television.
whereas the Union's ageing population is one of the reasons for the increase in the cancer burden across the Union,
Only in 2011 such imports decreased, followed by import increases in the years 2012 and the RP, This abnormal observation indicated that another reason caused the increase of imports under that code.
For reasons of clarity, the capital increases that were used to finance the iTiden project are dealt with first in the analysis presented below.
For these reasons, the increase in energy prices has become one of the most sensitive political questions.
There are many reasons given for the increase in oil markets.
Other reasons for the increase are the continued phasing-in of the compensation to sugar beet producers in EU-15 (+EUR 184 million)...
The main reason for the increase was the growth in autonomous factors, by 39 %, to Euros 380 billion.
I understand that they have initiated research on the problem and will look at the reasons for the increase in the doses.
In the cereals sector there are various different reasons for the increase in prices.
This decrease is one of the main reasons for the increase in the overall liability.
QPANI argues that the reason for the increase in aggregate production in Northern Ireland from 2004 to 2007 was a result of increased construction activity within the province.
Despite acknowledging that the main reason for the increase in doping is excessive commercialisation, the Commission is doing nothing to combat it.
There is every reason to increase investment in research.

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