Introduction

As opposed to fixed-base indices, aggregating chain-linked index series is anything but trivial. Yet some of the most prominent macroeconomic indicators, such as national accounts or harmonised indices of consumer prices (HICP), are constructed as chain-linked Laspeyres indices. Furthermore, the currently developed “indices of exchange rate effects in the international investment position (IIE)” are part of this index family.

The necessary computational work for chain-linked indices can be facilitated by using programs of the KIX family. The abbreviation KIX of KettenIndeX is the German word for chain index. The software JDemetra+ (JD+) provides the implementation of KIX plug-ins.

Installation

Download the installation file from the plug-in’s GitHub repository and save it to your local folder of choice. Choose

from the JD+ drop down menu, open the Downloaded sheet and press the Add Plugins button. Select the local copy of the installation file, click the Install button and accept the terms in the licence agreements. Once the installation is finished, KIX documents and a global option menu are available. Note that the plug-in is automatically activated and, therefore, a restart of JD+ is not necessary.