Use case
Global supply chain pressures, international trade and inflation
Discover how Artelys Knitro addresses the challenges associated with measuring the distinct impacts of Covid-19 on various countries and economic sectors, as well as analyzing the persistent inflation generated by the pandemic while handling complementarity constraints within complex quantitative economic models.

In terms of drops in real Gross Domestic Product (GDP) and private consumption, the early phase of the Covid-19 pandemic can be categorized as the worst recession period in the US and Europe since the Great Depression of 1929.

While the global economy was hugely affected in a generalized manner, the impact on different economies’ sectors and countries were uneven. An explicit example can be spotted when looking at services sectors relying on face-to-face interactions (e.g., restaurants) versus online deliveries of goods and services.

Here, the authors propose various quantitative economic models to measure how different aspects of the Covid-19 pandemic have impacted price increases between the collapse and recovery periods of the global economy, i.e. from Q4-2019 to Q4-2021. Solving these complex models requires the optimization of non-linear problems, which is carried out using Artelys Knitro.

Thanks to Artelys Knitro, the authors were able to carry out a pertinent analysis of the persistent inflation generated by Covid-19. In addition, Artelys Knitro has the ability to handle complementarity constraints, making it a valuable tool for solving economic models and applications.

At the authors’ request, we would like to point out that this study was carried out without financial support from Artelys.

Start with a tutorial!


You’re not familiar with nonlinear optimization? This tutorial will present some examples of nonlinear problems for various applications. You will discover nonlinear programming methods using the Artelys Knitro solver in a Python notebook, through different examples.

Free trial


Get your trial license to test Artelys Knitro’s performances on your own mathematical optimization problem. The trial package includes free support and maintenance. You can have access to Artelys Knitro for free with a 1-month unlimited version or a 6-month limited version.

Artelys Knitro has unmatched performance

Best Nonlinear Solver

Artelys Knitro has been ranked every year by public benchmarks consistently showing Artelys Knitro finds both feasible and proven optimal solutions faster than competing solvers.

Technical support

The Artelys technical support team comprises Artelys’consultants (PhD-level) who are used to solving the most difficult problems and deploying enterprise-wide optimization solutions. They can advise on algorithmic or software features that may result in enhanced performance in your usage of Artelys Knitro.

Updates and new features

The development team works continuously to provide two releases of Artelys Knitro every year. Based on feedback, we always improve our solver to meet users’ requirements and need to solve larger models faster.

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