Resources for the Future Pizer and Kopp. 3. cost to the economy.5 This is the notion of cost most often described by economists (e.g., Harberger 1971; Diamond and Mirrlees 1971). Defining and estimating Ci ()az, is far from trivial.
For stepping stones that are going to see a lot of use, you should consider using reinforced concrete so that your stepping stones are more durable. This type of concrete also sells at most hardware stores, often under the names gravel mix reinforced or fiber reinforced premixed concrete..
1 Read through this list of supplies you need to make a stepping stone. 2  Find out what items are mandatory and what items are optional. 3  Step-By-Step Directions. 4  These directions take you through each step of creating your own garden stones. 5  Tips and Helpful Hints. These directions take you through each step of creating your own garden stones. 2  Tips and Helpful Hints. 3  Before you start making your own stepping stones, read through these tips. 4  Photos of Stepping Stones. 5  If you are not sure what to use to embellish your stepping stone, check out all of these pictures for inspiration.