public AccountingEntry(PolicyAccount policyAccount, DateTimeOffset creationDate, DateTimeOffset effectiveDate, decimal amount)
 {
     this.PolicyAccount = policyAccount;
     this.CreationDate  = creationDate;
     this.EffectiveDate = effectiveDate;
     this.Amount        = amount;
 }
 public ExpectedPayment(PolicyAccount policyAccount, DateTimeOffset creationDate, DateTimeOffset effectiveDate, decimal amount) :
     base(policyAccount, creationDate, effectiveDate, amount)
 {
 }