C++ Question (if and while loops)

For some reason it is closing whenever i go through the first statement completely or in the while loop if something is to happen if it is 0. I want it to display the pay message in both instances. however it crashes.

#include

using namespace std;

int main()
{
double wage;
double hours;
double tr;

cout << "Enter the wage for the employee" << endl;
cin >> wage;

if (wage >= 0.00001)
{
cout << "You have entered " << wage << " as a value" << endl;
cout << "Please enter the amount of hours the employee worked." << endl;
cin >> hours;
cout << "You have entered " << hours << "hours." << endl;
cout << "Please enter the tax rate as a decimal." << endl;
cin >> tr;
std::cout << "The employee's pay for this cycle is " << (wage * hours) - (wage * tr) << endl;

}

while (wage = 0)
{
cout << "Please reenter, you need to specify amount greater than 0.00." << endl;

if (wage >= 0.00001)
{
cout << "You have entered " << wage << " as a value" << endl;
cout << "Please enter the amount of hours the employee worked." << endl;
cin >> hours;
cout << "You have entered " << hours << "hours." << endl;
cout << "Please enter the tax rate." << endl;
cin >> tr;
std::cout << "The employee's pay for this cycle is " << (wage * hours) - (wage * tr) << endl;
}
}
return 0;
}