Health Savings Accounts - demand and supply control mechanisms?

How do HSAs encompass demand side cost-control mechanisms? How do they include supply side cost control mechanisms?

Introduction to Economics

I have been hired as an economic consultant to evaluate the nation's airport security systems (metal detectors and machines that allow security people to see what's inside carry-on luggage). Suppose these security systems add $5 to the typical airplane ticket and require 10 minutes of extra time for each passenger. list and explain at least two questions you will answer in your evaluation

economics and real estate

Explain why housing prices vary from city to city. Cleary explain how supply and demand affect the prices of the homes and be sure to show your work.

Accounting principles practice: straight-line vs. double declining balance method - depreciation expense

This is an exercise I am practicing and I need someone to correct it for me and tell me where I stand. Thank you. Questions (also attached) 1. RichCo purchased machinery on 1/1/05 at a cost of $243,000. The estimated useful life is 5 years. The estimated salvage value is $12,000. a. Using the straight-line method, depreciation expense will be? b. Using the double declining balance method, depreciation expense will be?

Accounting principle practice - accounting assumption, principle, or constraint

I have identified the definitions, 3 of them I could not identify. I need some one to correct me (see attachment for complete set of questions). Thanks Questions (also attached) 1. Identify by the number, the accounting assumption, principle, or constraint that describes each situation attached. 2. For each transaction, indicate whether it would normally be ... (see attached)