Pros
Mathematica produces high quality work and has very smart and talented people that are skilled in their policy areas. The compensation package is competitive and the need for work life balance is appreciated and recognized. I worked as a mid-level researcher at the corporate headquarters so I don’t have firsthand experience in the other divisions or offices.
Cons
1) Colleagues are generally nice and supportive but many are quick to judge or make assumptions about different ways of looking, speaking, or thinking. There is no diversity training, discussion of cultural competence, or internal programs to support staff from diverse backgrounds. This is coming from someone who identifies as White but came to Mathematica from an organization that did much more in the area of diversity. 2) The corporate culture is uniform so perspective is limited and thinking outside the box is encouraged but not always welcomed. 3) Mathematica lacks diversity in the health and human services research divisions; there are very few staff from underrepresented racial and ethnic groups . There is some diversity along the lines of staff from traditionally non-underrepresented racial and ethnic groups and gender. 4) Mathematica has a very top down style in everything it does. Decisions are made at a very high level with little input from lower level employees and when input is collected it’s not clear if or how it influences decision making. 5) Management does not communicate the issues that are being considered by management in a consistent way. Management does a bad job of communicating final decisions. 6) Policies and procedures are often unclear: you can ask two people (even high level managers) the same question and get two very different responses. 7) Mathematica does not do a good job of integrating new staff into projects or the work environment.