Vacant land has been zoned for either a condominium (10,000 sqft) or a single-family home (6,000 sqft). The construction cost of the condominium is $100 per sqft while that of the family home is $120 per sqft. There are two possible market states next year which determine the sales prices of the condominium and the family homes as follows: Good state: the condominium and the family home are sold at $230 per sqft and $300 per sqft, respectively. Bad state: the condominium and the family home are sold at $140 per sqft and $200 per sqft, respectively. The current price of a comparable condominium is $180 per sqft and that of a comparable family home is $225 per sqft. First-year rental rates (paid at the end of the year) on the comparable condos and homes are 20% and 10% of the current sales prices, respectively. Answer the following question

Implied risk-free rate= 7.78%

(a).Suppose that you can build a condominium or a family home immediately. What is the value of the lot if you decide to build a condominium now?

(b). What is the value of the lot if you instead decide to build a family home now?