Why is \textcite not producing “author (year)”?

Question

Consider the following MWE:

\documentclass[]{scrartcl}
% PACKAGES LOADING
\usepackage[backend=biber,style=chicago-authordate]{biblatex}
% BIBLIOGRAPHY SETTINGS
\addbibresource{Ref.bib}
% DOCUMENT
\begin{document}
See \textcite{shapley_62}.
\raggedright
\printbibliography
\end{document}

Coupled with this Ref.bib

@article{shapley_62,
    title={Simple games: An outline of the descriptive theory},
    author={Lloyd Stowell {Shapley}},
    journal={Behavioral Science},
    volume={7},
    number={1},
    pages={59--66},
    year={1962},
    doi={10.1002/bs.3830070104}
}

The output is this one:

It was my understanding that using \textcite{} produced “author (year)”. However, it doesn’t. So, two questions:

1. Why is \textcite not producing “author (year)”?
2. How to get “author (year)” while keeping the bibliography style I have chosen?

Answer 1

The styles of the biblatex-chicago bundle are a bit special: They should not be loaded via \usepackage[style=<style>]{biblatex}. Instead you should load them via the wrapper package biblatex-chicago. This wrapper package sets up a few options and other things that would not be set up if you were to load the style directly via biblatex.

This is also discussed in the biblatex-chicago manual once in the Quickstart section on p. 3 and in much more detail in §4.5.1 Loading the Style [for notes] (pp. 91-92) or §5.5.1 Loading the Styles [for authordate] (p. 171)

The following MWE works fine

\documentclass{scrartcl}
\usepackage[backend=biber, authordate]{biblatex-chicago}
\begin{filecontents}{\jobname.bib}
@article{shapley_62,
  title   = {Simple games: An outline of the descriptive theory},
  author  = {Lloyd Stowell Shapley},
  journal = {Behavioral Science},
  volume  = {7},
  number  = {1},
  pages   = {59--66},
  year    = {1962},
  doi     = {10.1002/bs.3830070104}
}
\end{filecontents}
\addbibresource{\jobname.bib}
\begin{document}
See \textcite{shapley_62}.
\raggedright
\printbibliography
\end{document}