Le 22/07/16 09:17, Cédric Krier a écrit :
On 2016-07-22 07:21, Richard PALO wrote:
Le 22/07/16 07:08, Cédric Krier a écrit :
That highly depends on the industry. In some of them, suppliers update
prices yearly and the company want the new prices to take effect on the
right date. It is also interesting in some cases to know when the new
prices where given by the supplier and what is the expected "expiry" date
of the price to know if you need to ask for a new quotation or you can
count on the price you have to make a sale quotation for example.
Please can you give me an example of such industry?
One common example is any installation service company (electricity, plumbing,
HVAC, etc...)
But I do not see why such design is needed for this. For me, updating
the price on the right date is a simple design and probably more
effective.
Also the price list of product supplier is just a default and will
always be. The right price is always given by the supplier.
I guess some practical experience in contracting under fixed price helps
better understand the issue... This holds true for both private and
public tender.
Cost estimations must be very closely regarded and given the contracting
delays which can be in months (typically 3 months minimum) for project
duration that can be in years, it is important to keep tabs on effective
price dates.
Many many contractors have quite a close relation with their business
partners and are in constant dialog with respect to pricing and
conditions. Also, suppliers may naturally have different pricing
policies and compare differently over time.
The actual purchase price may be 'fixed' (potentially in advance via
special quoting by the supplier), but there are vast numbers of
"consumables" that are purchased as needed that have price changes on an
established basis (like 'yearly').
This involves various hardware like supports, nuts/bolts/nails/staples,
isolation, wire, cables and tubes, conduit, glue, tape, ciment, plaster,
paint... well *everything* needed to install technical equipments
correctly (in the example mentioned).
All these greatly affect the bottom line every bit as much as the
man-hours does. (which is also an important revisable item needing
validity dates).
BTW, who has ever received a quote which didn't have a validity clause?
In short, price history is one-thing, but the practical problem area is
in the future... where price validity dates help greatly.
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