less, easier
Explanation:
Tangible Resources- They are the resources which include physical things such as machines, cash, inventories, buildings etc. These are less constrained and can be quickly liquidated or leveraged to earn additional wealth.
Intangible resources- These resources include patents, copyrights, innovation, design etc. They are the product of the ingenuity of the human mind. These are hard to leverage for adequate value. Absence of a physical form but having monetary worth is the prime characteristic of intangible assets.
Thus, the missing words can be filled up as less and easier