Late Byzantine social and economic history; Byzantine-Ottoman relations; social topography of late Byzantine Constantinople; history of medieval Anatolia.
(ed. with A. Ödekan and E. Akyürek) The Byzantine Court: Source of Power and Culture. Papers from the Second International Sevgi Gönül Byzantine Studies Symposium (Istanbul: Koç University Press, 2013).
(ed. with A. Ödekan and E. Akyürek) First International Sevgi Gönül Byzantine Studies Symposium: Proceedings — 1. Uluslararası Sevgi Gönül Bizans Araştırmaları Sempozyumu: Bildiriler (Istanbul: Vehbi Koç Vakfı, 2010).
Byzantium between the Ottomans and the Latins: Politics and Society in the Late Empire (Cambridge: Cambridge University Press, 2009).
(ed.) Byzantine Constantinople: Monuments, Topography and Everyday Life (Leiden: Brill, 2001).
“Circulation of People between the Byzantine and Ottoman Courts,” in The Byzantine Court: Source of Power and Culture, eds. A. Ödekan, N. Necipoğlu and E. Akyürek (Istanbul: Koç University Press, 2013), 105–108.
“The Social Topography of Late Byzantine Constantinople: Evidence from the Patriarchal Register,” Journal of Turkish Studies 36 (2011), 133–143.
“Geç Bizans Döneminde İmparatorluk ve İmparatorluk İdeolojisi: Gelenek, Dönüşüm ve Yenilik / Empire and Imperial Ideology in the Late Byzantine Era: Tradition, Transformation, and Innovation,” in Kariye Camii, Yeniden / The Kariye Camii Reconsidered, eds. H. A. Klein, R. G. Ousterhout, B. Pitarakis (Istanbul: Istanbul Research Institute Publications, 2011), 269–296.
“Turks and Byzantines (Eleventh and Twelfth Centuries),” in The Turkic Speaking Peoples, eds. E. Çağatay and D. Kuban (Munich-Berlin-London-NY: Prestel Verlag, 2006), 254–265.
“The Aristocracy in Late Byzantine Thessalonike: A Case Study of the City’s Archontes (14th–15th Centuries),” Dumbarton Oaks Papers 57 (2003), 133–151.
“Constantinopolitan Merchants and the Question of their Attitudes towards Italians and Ottomans in the Late Palaiologan Period,” in Polypleuros nous: Miscellanea für Peter Schreiner zu seinem 60. Geburtstag, eds. C. Scholz and G. Makris (Munich-Leipzig: K. G. Saur Verlag, 2000), 251–263.
“Economic Conditions in Constantinople during the Siege of Bayezid I (1394–1402),” in Constantinople and its Hinterland, eds. C. Mango and G. Dagron (Aldershot: Ashgate Publishing, 1995), 157–167.
“Ottoman Merchants in Constantinople during the First Half of the Fifteenth Century,” Byzantine and Modern Greek Studies 16 (1992), 158–169.