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Ecosystem Building Game by McKinsey: what is it?

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In the competitive world of business consulting, McKinsey & Company stands out as a leading name. To identify top talent, they've introduced an assessment tool, the McKinsey Problem Solving Game (PSG). This game-based test has replaced the earlier Problem Solving Test (PST). The PSG is designed to effectively measure an individual's problem-solving capabilities.

In this overview, we'll discuss the PSG's structure and the key skills it evaluates.


A Strategic view of Ecosystem Building Game

Participants are presented with a roster of 40 species, from which they must select 8 to design a self-sustaining ecosystem. The exercise is underscored by three core objectives:

  1. Continuous Food Chain Integration: Within the constructed ecosystem, there needs to be an uninterrupted food chain, ensuring each species has its defined role in the consumption hierarchy.

  2. Caloric Balance: A crucial component is ensuring a calorie surplus exists between each predator and its corresponding prey. This not only sustains individual species but also ensures overall ecosystem stability.

  3. Terrain Compatibility: Adding to the challenge, the designed ecosystem must align with specific terrain specifications of a predetermined location. This aspect demands a keen understanding of environmental factors and their influence on species habitation.

In essence, McKinsey's game is not just about ecological understanding but also about strategic planning, foresight, and adaptability - key traits in the business realm.

How are participants scored?

Participants undergoing the McKinsey Problem Solving Game (PSG) will be evaluated on two primary metrics: speed and cognitive ability. Not only is the promptness of their responses vital, but the structured behavior they exhibit during gameplay also offers insight into their analytical and problem-solving prowess.

This dual-assessment approach ensures a comprehensive understanding of the participant's aptitude and approach to challenges. 


How to maximize your results?

For those gearing up for the Ecosystem Building Game, employing an Excel solver is your game-changing strategy. Our specially designed PSG Excel solver streamlines the process by effectively organizing and visualizing the intricate data about species relationships and calorie transactions. Excel's capabilities not only save invaluable time by automating complex calculations, but they also mitigate error risks, ensuring precision.

Think of it as adopting McKinsey's structured business case approach: a ton of data, dissected and managed with finesse. Opt for our Excel Solver to navigate this game with an edge, and let its pre-built formulas effortlessly craft the optimal food chain for you. Dive into the next section, and we'll guide you through this process.

McKinsey PSG Excel Solver vs. Guide

When preparing for the Solve Game, participants have two primary options to equip themselves for assessment day: the Excel Solver and a dedicated game guide. If you are unsure which to pick, here's how they stack up:

Depth of Content:

  • McKinsey PSG Game Guide: Offers comprehensive insights into the game's dynamics. It acts as a manual, introducing players to the nuances and intricacies of the ecosystem, from species relationships to calorie transactions.
  • McKinsey PSG Excel Solver: While not necessarily a deep dive into game dynamics, it's a practical tool that's oriented toward achieving the maximum outcome. It's less about understanding the 'why' and more about the 'how'.

Support on Assessment Day:

  • McKinsey PSG Game Guide: While rich in detail, the guide essentially equips participants with knowledge. On the assessment day, participants still need to apply this knowledge under pressure, leaving some room for error or oversight.
  • McKinsey PSG Excel Solver: Acts as a proactive assistant. Rather than just offering insights, it takes the reins in many areas, automating calculations and ensuring precision. The solver is designed to guarantee a successful outcome, minimizing the on-the-spot burden on the participant.

In summary, while the game guide is akin to a detailed manual, the Excel Solver is more of an autopilot system. Both have their advantages, but for those aiming for guaranteed success on game day, the Excel Solver is the tool of choice.