default bibliography style in memoir class

Question

I am writing my thesis on the memoir class. I dont seem to figure out how to make natbib or else biblatex to work in this environment and so am having problems using the citet or shortcite commands to either have Author(Year) in the intext citations and AuthorA et. al (Year) in cases with more than two authors.The memoir manual doesn't seem to explicitly show how to formally use citations (or I am expecting too much from the manual). My institution uses the APA style and so am caged to make this work. Relating to the bibliography, this is my MWE:

\documentclass[12pt, a4paper, openany]{memoir}
\usepackage{apacite}
\bibliographystyle{apacite}
\begin{document}
\bibliographystyle{apacite}
\bibliography{\file.bib}
\end{document}

and from the file.bib I got;

@article{andreoni2011avoiding,
    Author = {Andreoni, J and Rao, Justin M and Trachtman, Hannah},
    Journal = {Empathy, and Charitable Giving, memo},
    Title = {Avoiding The Ask: A Field Experiment on Altruism},
    Year = {2011}
}

Any suggestions please?

Hyperref:

Here is what I do to have my citations url and the ToC to hyperlink and in blue coulor. I intend to change the color before submitting my thesis as this is not acceptable in my University. Either way, I need to be able to quickly find an intext citation entry in my document as I develop it. I am thinking coloring will help me.

\usepackage{hyperref}
\hypersetup{
    colorlinks   = true, 
    urlcolor     = blue, 
    linkcolor    = blue, 
    citecolor   = blue 
}

The error message is that I am using a caption command with memoir class.

Answer 1

Some comments and observations:

• The memoir document class neither provides nor expects any particular bibliography style.

• If you want to use natbib-like commands such as \citet and \citep while using the apacite citation management package, you should load apacite with the option natbibapa:

  \usepackage[natbibapa]{apacite}
  

  Do not load natbib separately.

• Don't issue two \bibliographystyle instructions.

• The argument of \bibliography should be file, not \file.bib, right?

• Whatever else you decide to do, you really, really need to update the contents of the bibliographic entry. After all, the piece was published in the June 2017 issue of the Journal of Political Economy.

  @article{andreoni-rao-trachtman:2017,
    author  = {James Andreoni and Justin M. Rao and Hannah Trachtman},
    title   = {Avoiding the Ask: A Field Experiment on 
               Altruism, Empathy, and Charitable Giving},
    journal = {Journal of Political Economy},
    volume  = {125},
    number  = {3},
    pages   = {625--653},
    year    = {2017},
    doi     = {10.1086/691703},
    eprint  = {https://doi.org/10.1086/691703},
  }
  

And the revised MWE might look like this:

\documentclass[12pt, a4paper, openany]{memoir}
\usepackage[natbibapa]{apacite}
\bibliographystyle{apacite}

\begin{document}
\citet{andreoni-rao-trachtman:2017}
\bibliography{file}
\end{document}