Natural logarithm and Purchasing Managers' Index: Difference between pages

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imported>Doug Williamson
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imported>Doug Williamson
(Add 2nd & 3rd definitions. Source: CIPS webpage https://www.cips.org/en-gb/who-we-are/news/uk-manufacturing-pmi-remains-stuck-at-six-and-a-half-year-low-in-july/)
 
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''Options analysis''
(PMI).


The natural logarithm ln(x) is the logarithm to the base ‘e’, and mathematically the inverse function of the exponential function e<sup>x</sup>.
1. ''Economic indicators - US.''


So for example ln(100) = 4.60517...
The US Purchasing Managers' Index measures new orders, production, employment and supplier deliveries, based on a survey of North American manufacturing businesses.


And e<sup>4.60517...</sup> = 100
It is an important measure of economic activity.




Also known for short as the 'natural log'.
The US PMI is published monthly by the US Institute for Supply Management.


Also sometimes known - loosely - as the 'Napierian logarithm'.


(Not to be confused with Lognormal, which is different.)
2. ''UK''.
 
A similarly-structured index for UK manufacturing.
 
The UK PMI is published by IHS Markit and the Chartered Institute for Procurement and Supply (CIPS).
 
 
3.
 
Similar indices for other economies.




== See also ==
== See also ==
* [[Exponential]]
* [[Chartered Institute for Procurement and Supply]]
* [[Exponential function]]
* [[Institute for Supply Management]]
* [[Logarithm]]
* [[PMI]]
* [[Lognormal]]
 
* [[Napierian logarithm]]
[[Category:The_business_context]]
* [[Volatility]]
[[Category:Financial_products_and_markets]]

Revision as of 14:25, 28 August 2019

(PMI).

1. Economic indicators - US.

The US Purchasing Managers' Index measures new orders, production, employment and supplier deliveries, based on a survey of North American manufacturing businesses.

It is an important measure of economic activity.


The US PMI is published monthly by the US Institute for Supply Management.


2. UK.

A similarly-structured index for UK manufacturing.

The UK PMI is published by IHS Markit and the Chartered Institute for Procurement and Supply (CIPS).


3.

Similar indices for other economies.


See also