PPI: Wood Pulp - Seas Adj, Index 1982 = 100

Source:
U.S. Bureau of Labor Statistics

Release:
Producer Price Index

Units:
Index 1982=100, Seasonally Adjusted

Frequency:
Monthly

Available Through:
12/31/2014

Why Use:

The producer price index for wood pulp represents the average movement in selling prices from domestic production over time. This indicates supply and demand for wood pulp and its inputs.

Suggested Treatment:

The data shows autocorrection and a non-normal distribution. The data should be differenced. While the Order Norm transformation, provides the best normality, the Untransformed variable will also perform well.

Grain Transformation:

Data is unable to be distributed by time or geography. The roll up method used is Weighted Average.

Connect to this
Data Set Now

Ready Signal automates the process of sourcing, normalizing, and applying data science treatments to this data and other impactful control data. Create an account today.

PPI: Wood Pulp - Seas Adj, Index 1982 = 100

Auto Correction Function

Auto Correlation Function After Differencing

Partial Auto Correlation Function

Seasonal Impact

Seasonal and Trend Decompostion

Autocorrectation Analysis:

Data shows autocorrectation indicating a need for differencing

The ACF indicates 1 order differencing is appropriate.

Further differencing is reccommended

Trend Analysis:

The Kwiatkowski-Phillips-Schmidt-Shin (KPSS) test, KPSS Trend = 0.32 p-value = 0.01 indicates that the data is not stationary.

Distribution Analysis:

The Shapiro-Wilk test returned W = 0.62 with a p-value =0.00 indicating the data does not follow a normal distribution.

A skewness score of 0.53 indicates the data are moderately skewed.

Hartigan's dip test score of 0.18 with a p-value of 0.00 inidcates the data is multimodal

Statistics (Pearson P/ df, lower => more normal)

No transform
8.02
Box-cox
NA
Log_b(x-a)
8.41
sqrt(x+a)
8.36
exp(x)
NA
arcsinh(x)
8.39
Yeo-Johnson
8.41
OrderNorm
6.89

Data Notes:

2020 data is not currently available.

Citation:

U.S. Bureau of Labor Statistics, Producer Price Index by Commodity for Pulp, Paper, and Allied Products: Wood Pulp [WPU0911], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WPU0911, November 8, 2019.

Take the next step

SIGN UP FREE