What is lease accounting and reporting for lessees?

Lease accounting is going into effect soon. Why is there a change to lease accounting from capital leases to operating leases? What is the difference?

What is the difference between defined benefit plans and defined contribution plans?

What are pension accounting impacts on the balance sheet and income statement?

What is the difference between temporary differences and permanent differences?

How do timing differences create a deferred tax liability and deferred tax asset?