Abstract
This study focused on the management of the legislature-executive relations and conflicts in the Nigerian presidential democracy. The specific objectives were to assess the influence of perceived political structure, modality and interaction on the effectiveness of executive-legislature relations. Data were sought through survey-based research. The study considered the total of 500 (five hundred) for its population. Purposive sampling was adopted to select five (five hundred) respondents. The data generated for the study were analyzed using both descriptive and inferential analytical techniques. The analytical technique employed was Multiple Regression Analysis and Logit Regression Analysis. Findings showed that modality, interaction and perceived political structure have significant influence on the effectiveness of executive-legislature relations in Nigeria. It is further found that modality contributes to the effectiveness of executive-legislature relations. The study concluded that a sound presidential democracy hinges on a well-designed political structure where the legislature-executive relations and conflicts are constructive and effectively managed. The study recommended that the executive and the legislature arms should embrace clear modality, effective interaction and strong political structure as they significantly and positively influence the effectiveness of executive-legislature relations in Nigeria.