Leverage products are characterized by high spend and low complexity, giving buyers the ability to negotiate favorable terms due to supplier competition and standardization.

If the market has few suppliers, an open tender is not appropriate, as it adds unnecessary time and cost.
Instead, a restricted or negotiated procedure is more effective. Open tendering is best used in highly competitive markets.

Internal stakeholders are those who work within the business so include the legal department, employees and end-users. End-users mean those people and departments who will be using the product or service. For example if Gabriel is procuring new software- an end-user would be anyone who would be using that software (whether they're employees, volunteers or agencies). CIPS outlines types of stakeholders on p.64

Comprehensive and Detailed Explanation:
Partnerships between buyers and suppliers are often driven by:
* High Spend:Significant expenditure justifies the investment in developing a closer relationship to achieve cost savings and efficiencies.
* Critical Products:Items that are essential to the buyer's operations necessitate a reliable and collaborative supplier relationship.
* Technical Complexity:Complex products benefit from joint development efforts, shared expertise, and coordinated problem-solving.
Conversely, commodities and markets with many suppliers typically lend themselves to transactional relationships rather than partnerships.
Reference:
CIPS L4M6 Study Guide

The correct answers are information sharing and trust. Further qualitative KPIs are listed on p.102. Deliveries in full and on time would be a quantitative KPI and early supplier involvement is not a KPI at all.