I'm not sure how to position the three nodes inside the other "trustee characteristics". Have tried rectangle, however I guess this is not the right approach. Also the arrow should end/begin at the outside of the "outer node". The entire figure is out of center and two wide. How can I get it centered properly?
\documentclass{article}
\usepackage{tikz}
\usepackage{enumitem}
\usetikzlibrary{shapes.geometric, arrows, calc, fit, positioning, chains, arrows.meta}
%%% styles for Figure: Structure of the paper %%%
\tikzset{arrow/.style = {thick,->,>=stealth,}}
\tikzset{arrow2/.style = {thick,dotted,->,>=stealth,}}
\tikzset{nearnodes/.style={node distance=0.8cm,}}
\tikzset{farnodes/.style={node distance=4.5cm}}
\tikzset{model1/.style = {rectangle, text width=3cm, minimum height=1cm,text centered, draw=black, fill=white!30,}}
\tikzset{model2/.style = {rectangle, text width=3cm, minimum height=1cm,text centered, draw=black, fill=white!30,}}
\begin{document}
\begin{figure}
\centering
\begin{tikzpicture}
%%% nodes %%%
\node[farnodes] (DLE) [model1] {
\textbf{Digital Leadership Environment (DLE)}
\begin{itemize}[leftmargin=.19in]
\item Agile management and leadership
\item Hierarchies and networks
\item Dual system
\item Leadership on all levels
\item Project teams
\item Distributed and virtual team resources
\end{itemize}
};
\node[nearnodes] (benevolence) [model1, right =of DLE] {
\textbf{Benevolence}
\begin{itemize}[leftmargin=.19in]
\item Create/Sustain supportive context
\item Transformative leadership
\item Coaching behaviour
\end{itemize}
};
\node[nearnodes] (ability) [model1, above =of benevolence] {
\textbf{Ability}
\begin{itemize}[leftmargin=.19in]
\item Social capital/virtual impression
\item Compelling direction
\item Enabling Structure
\end{itemize}
};
\node[nearnodes] (integrity) [model1, below =of benevolence] {
\textbf{Integrity}
\begin{itemize}[leftmargin=.19in]
\item Self organization and reliance
\item Accountability
\item Value congruence
\end{itemize}
};
\node[nearnodes] (trust) [model2, right =of benevolence] {
\textbf{Leadership trust}
};
\node[nearnodes] (individual) [model1, above =of trust] {
\textbf{Individual factors}
\begin{itemize}[leftmargin=.19in]
\item Leader reputation (trustee)
\item Propensity and intention to trust (trustor)
\item Perceived risk (trustor)
\end{itemize}
};
\node[nearnodes] (other) [model1, below =of trust] {
\textbf{Other factors}
\begin{itemize}[leftmargin=.19in]
\item Swift trust
\item Cultural factors
\item Trust violation
\item Emotions
\end{itemize}
};
\node[nearnodes] (outcomes) [model1, right =of trust] {
\textbf{Outcomes}
\begin{itemize}[leftmargin=.19in]
\item Employee and team performance
\item Organizational citizenship behaviour
\item Willingness to follow
\item Communication
\item Learning and knowledge sharing
\end{itemize}
};
%%%% ARROWS %%%
\draw [arrow2] (DLE) -- (benevolence);
\draw [arrow] (benevolence) -- (trust);
\draw [arrow] (individual) -- (trust);
\draw [arrow] (other) -- (trust);
\draw [arrow] (trust) -- (outcomes);
%%%% RECTANGLES %%%
\node[draw, thick, inner xsep=1em, inner ysep=1em, fit=(ability) (benevolence) (integrity)] (box) {};
\node[fill=white] at (box.north) {Trustee characteristics};
\end{tikzpicture}
\caption{Integrated trust model} \label{fig:model}
\end{figure}
\end{document}
