be efficient for vs be efficient to

Some examples from the web:

• They need to be efficient for society but also for the individual, and it needs to be affordable for owners.
• A boarding ladder shall be provided which shall be efficient for the purpose of enabling inspectors to embark and disembark safely at sea.
• It would not be cost-efficient for an investor to build a position in an issuer through holding a financial instrument referenced to different baskets or indices.
• This will also be cost efficient for the Member States affected and will obviously improve the atmosphere of cooperation.
• The important thing as far as we are concerned is that the current projects can be proved to be efficient, for that is the only guarantee that the money is being used properly.
• In case of capital market imperfection, it may be more efficient for the supplier of a product than for a bank to provide a loan (see paragraph (107)(h)).
• This has proved to be an efficient instrument for enforcing the contractual deposit obligation.
• The Committee on Civil Liberties, Justice and Home Affairs has also agreed that in order for Eurojust to be efficient it is essential for its national members to have the same judicial powers they enjoy in their own countries.
• The reformed Community trade defence instruments need to be equally accessible and efficient for stakeholders from both service-based economies and economies that have strong manufacturing sectors.
• But another stated that: 'SOCLINK has not proved to be an efficient tool for the management of programme data...
• This is why, particularly within the European Union, there should be an efficient system for redirecting passengers to other forms of transport: rail, waterways or roads.
• Coordination and common actions will be beneficial for the efficient use of researchers' mobility.
• It should also be ensured that initiatives funding the purchase of household appliances be reserved for energy-efficient products.
• Reactive MgO grades can be used as efficient absorbents for SO2 in the magnesia industry.
• Rules should therefore be established for an efficient implementation of that Regulation as regards data sharing.
• In particular, it has proven to be relevant and efficient for the Commission to have the possibility of deciding on transfers of unused appropriations in cases of international humanitarian disasters and crises.
• "... In some occasions, the exemplary organisation of the local work, even at small scale, turns out to be more efficient for the people than a large number of State establishments with a centralized functioning."
• Those services or schemes shall be responsible for the efficient treatment of complaints and shall comply with best practice criteria.
• The price increase soon turns out be an extremely efficient tool for reducing consumption.
• Amendment 105: Has been rejected since providing a contract on request by a competent authority is considered to be necessary for an efficient control.

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