Sunday, December 6, 2009
Albert O. Hirschman, Exit, Voice, and Loyalty: Chapter 8, "Exit and Voice in American Ideology and Practice"
Emerging black political movements have departed from individual mobility as the ideal -- seen as weakening the ability of the group to advance by depriving it of talented advocates.
Short discussion about why option of exit from the country or from its government seems so stunted despite its otherwise central role. At first cut this boils down to positing high entry costs of immigration. Not very compelling -- most Americans are not immigrants, even if their ancestors were. Then more discussion of peculiar factors that may suppress exit from government positions. the key suggestion is that one's role in government could be seen as especially important and consequential because the country is so powerful, and the consequences of it going astray absent one's influence could be so dire.
Friday, November 20, 2009
Albert O. Hirschman, Exit, Voice, and Loyalty: Chapter 7, "A Theory of Loyalty"
Answer: when individuals are (1) willing to trade off the certainty of exit for an uncertain prospect of recuperation of the product and (2) confident of their ability to influence the defective firm or institution.
Loyalty -- the attachment to the institution -- comes into play in the first case, but in fact both factors reinforce one another. People who care about an institution will tend to put themselves into a position where they can influence it, and people with influence will feel like they have more at stake.
Loyalty isn't an absolute barrier to exit. It is similar in its effect to a significant transaction cost.
Loyalty is most useful when (1) the use of voice is not straightforward but will require ingenuity and creativity (2) when the deteriorating product has close substitutes. The second case is paradoxical -- it seems irrational not exit when close substitutes are available -- but firms in this condition would have no chance to recuperate were it not for loyalty. Since products, institutions, and social groups are typically unevenly distributed on a scale of quality and prestige, with greater density on the lower end, the second case also means that loyalty is more useful at the lower end of the scale.
In using voice, the loyalist's most effective tool is the threat of exit. So we have the following seeming paradox: ease of exit makes voice less likely, but possibility of exit makes voice more effective. The conclusion which can be drawn from this is that voice will be most likely to be both used and effective when exit is possible but not too easy.
Notes on model of loyalist behavior:
- voice increases with deterioration of quality, and curve bends up at points where there would be exit without loyalty and where there is threat of exit with loyalty
- once loyal customers exit, they will not return until at least the quality associated with exit without loyalty is restored; the demand curve for exit is separate from the demand curve for return
Leaders of organizations and firms want to reduce both exit and voice. Will use high entry fees and high penalties for exit to make exit more difficult and to promote unconscious loyalist behavior. However, high entry cost induced loyalist behavior will ten to suppress the initial use of exit, but to make it more vigorous once it has started. If the cost of exit is high as well, however, the loss of threat of exit will make voice less effective. On the other hand, organizations where exit is difficult or impossible but entry cost is automatic (e.g., family, country) may actually sustain the most vigorous use of voice because members will see it as their due.
A special case of loyalty among influential members of organizations is brought into play under the conditions that (1) their departure would result in a further decline in quality and (2) they would continue to care about the quality even after exit. The first condition presumes that the departure of influential members has the opposite effect of the exit of market makers in monopoly or monopolistic competition; this is possible because the members play a part in the production of the good as well as its consumption. The second condition is rational under the assumption that full exit is impossible, which is the case for public goods. (Examples: Public schools, political parties, government administrations)
In such cases, members may be even less likely to depart as an organization gets worse, because they feel more strongly that is their responsibility to stick around to prevent things from getting yet worse. (With tongue only halfway in cheek, Hirschman uses the term spinelessness for this behavior). On the other hand, a member who does decide to exit under these conditions is more likely to use their exit as a tool of protest that will initiate continued use of voice from outside of the organization. Hirschman laments, however, that this use of exit by disgruntled public officials has fallen into disuse, replaced by officials treating their exit as a private matter -- one thinks of the stock "spending more time with my family" excuse.
Sunday, November 8, 2009
Peter Heather, The Fall of the Roman Empire: Chapter 10, "The Fall of Rome"
Heather takes a synoptic view of the three stages of the fall of central Romanness -- 1) the invasions of the late 4th and early 5th centuries; (2) progressively more debilitating carving out of domains within the empire by barbarian groups in the first three-quarters of the 5th century; (3) the final seizure of fully independent kingdoms by the barbarians when the empire was no longer able to stand up to them. He argues that the Huns drove the initial invasions, that their presence helped prevent further invasions in the 5th century and helped the Romans to control the previous invaders, and that the Hunnic collapse threw the balance of power decisively in favor of the barbarians.
The end of the Roman state did take away the incentive for local elites to maintain classical literary education, local civic life, and the other aspects of local Romanness. Military service rather than Romanness became the path to getting ahead.
Although Heather's rejects Gibbons' thesis that internal factors alone were the cause of Rome's fall -- pointing to the survival of the Eastern Empire as a decisive refutation -- he does acknowledge that the military, economic, and political limits of The Roman Empire interacted in decisive ways with the external invaders who brought down the Empire. Militarily, the Romans ability to contain the barbarians was limited because the Sasanian front required a quarter of the Empire's armed force. This military force could not simply be further expanded because there was no way to generate more revenue -- agricultural production was already at its maximum. Politically, the empire was brittle in the face of barbarian invasion because local landowning elites -- the bulwark of imperial support -- had to swing their support behind any new power in their region to retain their property. Moreover, the Empire was beset by demands from a vast breadth of local elites, and to satisfy these demands it had to resort divided imperial rule. It was never possible to really settle the division of power or the management of succession, however, so this dual system was subject to prolonged bouts of instability during which the barbarians were able to press their advantage.
The external factor in the fall of Rome -- the powerful groups of invading barbarians -- depended on integration of Germanic tribes into larger coalitions. This process was driven by fear and opportunity: fear of the power of the Roman state against isolated opponents and the opportunity to seize enormous wealth if sufficient force could be mustered. These factors had actually been at play (along with the increasing wealth of Germania itself) in consolidating Germanic political units for centuries before the invasions.
A couple of notes on the text: (1) There is a fair bit of repetition of ideas and even phrases in the last three chapters -- it could have done with more editing polish. (2) Throughout the work, the maps fail to provide enough detail. There are many significant features referred to in the text (example: the passes over the Haemus mountains) which cannot be identified in the maps.
Saturday, November 7, 2009
Peter Heather, The Fall of the Roman Empire: Chapter 9, "End of Empire"
That done, Heather recounts the East's final attempt to shore up the West, starting with the installation of a new emperor on the Western throne. (Sidonius is still the main source for events in the West in this period.) The Western general Ricimer had fallen out with his original partner Majorian and then found no support forthcoming for his hand-picked replacement, Severus, so he had to settle with the the Eastern emperor Leo. As a result, the well-connected Eastern general Anthemius was promoted to the purple.
The first order of business was taking out the Vandals in North Africa. Majorian had already given this a go in 461, but the Vandal king Geiseric had destroyed his fleet in Spain. In 468, the combined Empire put together another army and fleet for a landing near Carthage, but the Vandals caught the fleet in an unfavorable wind and defeated it with the use of fire ships.
With the failure of the expedition, the Western Empire had run out of options. There weren't enough resources left to contain the barbarians in Western Europe. The Visigoths seized most of Spain and Southern Gaul, the Franks occupied northern Gaul, and the Burgundians and other tribes picked up smaller slices.
Heather examines the process of collapse though two examples -- one, Noricum, at the periphery, and the other, Gaul, in the core of the empire. In Noricum, the archaeological and literary evidence (the latter coming from the Life of Saint Severinus) shows that for several decades before the final collapse there had been a withering away of the army garrisons, and the abandonment of scattered estates for walled Roman refuge towns. Over time, the refuge towns consolidated and moved further away from the river frontier as security deteriorated.
In Gaul, literary evidence (from the letters of Sidonius, in particular) shows that the conquering Visigothic and Burgundian kings sought and often got support from the Roman landowning elites. The new barbarian rulers needed the Roman landowners to maintain the estates (and possibly provide taxes) and they needed skilled bureaucrats from the landowning class to administer their states. In return, the kings were willing to let cooperative Romans keep at least some of their land.
In Italy, Ricimer fell out with and deposed Anthemius, setting off a further round of musical chairs with the imperial throne. In the meantime, the mostly barbarian Roman army of Italy was getting restive over not getting paid; Odovacar, a general of Sciri birth, took matters into his own hands by deposing the last emperor and distributing land to the soldiers in lieu of pay. (I gather from the notes that Heather's main source on these events is Procopius.)
Sunday, November 1, 2009
Peter Heather, The Fall of the Roman Empire: Chapter 8: "The Fall of the Hunnic Empire"
Heather argues that the Hunnic coalition was unstable from the beginning. The subject peoples were enrolled in the Hunnic Empire against their will and often treated harshly, but administered largely though their own native leadership. The Huns depended on intimidation and the distribution of the tribute from predation on the Roman Empire to keep the subject rulers in line. The Huns seem to have run into the limit of their ability to extract money from the Romans, however, and the defeat of successive invasions diminished perception of their power and probably reduced their revenue as well. This left the Attila's sons without the wherewithal to keep their vast empire intact.
Heather points out three significant consequences of the Hunnic collapse for the Roman Empire. First, it complicated the situation on the Danube frontier. The Romans now had to manage many frequently conflicting German tribes. Both the victors, who could be strong enough to exact tribute, and the losers, who often invaded or sought refuge in the Roman Empire, created challenges for Roman policy.
Second, the end of the Hunnic threat put Aetius in a precarious position. Power brokers in Roman politics judged that they could now do without his generalship. In fact, the emperor Valentinian assassinated Aetius in 454, only to be struck down in turn by co-conspirator Petronius Maximus the next year. (Petronius lasted for even less time.)
Third, the Huns could no longer be used as a mercenary counterweight to the barbarian groups already established within the Empire. Since the Western Empire itself no longer had the resources to contain them, either, barbarian groups had to be bargained with. From now on, they would play a leading role in the politics of the empire and the imperial succession. Thus Avitus, with the backing of the Visigoths, succeeded Petronius.
Here Heather has some fun taking apart the propaganda of Avitus' son-in-law Sidonius. Sidonius did his best to convince the Romans in Italy that Avitus was in control of the Visigoths rather than the other way around, and that the Visigoths were fine fellows anyway. The senators weren't buying, however, and Avitus was soon deposed by the Italian generals Majorian and Ricimer. From this, Heather draws the further conclusion that there were now too many factions to satisfy in the Western Empire: with the barbarians directly involved, no stable regime could be established
Sunday, October 18, 2009
Peter Heather, The Fall fo the Roman Empire: Chapter 7, "Attila the Hun"
The main source for the chronology of the Hunnic invasion is the Byzantine chronicler Theophanes. Heather's discussion of the criticism of Theophanes lacks coherence, however. According to Heather, Theophanes says that there were two invasions of the Balkans after 441-442, in 443 and 447. But then Heather says that Maenchen-Helfen's work shows that Theophanes put all of the doings of the Huns in the 440s into an entry for the years 449-450. It's not clear to me what to even make of this criticism. Has it been previously misunderstood what years Theophanes was talking about? Moreover, on the basis of the criticism, Heather claims that we are able to deduce that there was only one invasion -- the one in 447 -- without it at all being clear how he arrives at this conclusion.
In any case, Attila's Huns defeated two Roman armies in 447, and exacted an onerous peace from the Eastern Empire.
Heather turns his attention at this point to the nature of Hunnic society and the sources of its transformation into a military force rivaling Rome. He starts with the figure of Attila, the king of the Huns' empire. Looking through the lens of Priscus' description of his ambassadorial mission to Attila in 449, we get a picture of a shrewd leader: he carefully cultivated his image and exercised power with a deliberate and studied balance of aggression, brutality, and diplomacy.
One key political change in Hunnic society was the very existence of a single king like Attila. Heather points out that evidence from earlier contacts with the Huns, such as Olympiodorus' embassy in 411, shows that such centralization was a break from tradition -- the Huns of previous times had a ranked series of kings. Moreover, he notes, the anthropology of nomadic societies generally leads us to expect dispersed power, since the population is rarely concentrated in one place. Heather argues that winnowing the ranks of kings must have been accomplished largely through violence, as was the case with Attila's killing of his own brother Bleda. Moreover, he notes that the issue of refugee Huns in the Roman Empire that was such a major preoccupation for Attila sheds light on this process, for these refugees seem to have been the survivors of other royal lines.
In addition to eliminating rivals, however, Heather argues that the newly exclusive Hunnic kingship demanded a way to win the loyalty of the rivals' former followers. Heather speculates that this loyalty was essentially bought with the proceeds from an increasingly predatory relationship with the Roman Empire.
The other key transformation Heather points out in the Hunnic Empire was its Germanization. By the time of Attila, the Empire was certainly linguistically heavily Germanized -- even the names of Attila and his key lieutenants seem to have been Germanic. Furthermore, descriptions of Hunnic military campaigns make it clear that they had always included large number of Germanic or other non-Hunnic warriors. Moreover, the archaeological evidence from the area of Hunnic domination shows a much larger number of rich burials that were characteristically Germanic than Hunnic. Heather argues that all this was due to the incorporation into Hunnic control of a great proportion of the Germanic tribes who had not already invaded the Roman Empire. This massively increased the military manpower at the disposal of the Huns.
In 451 and 452, Attila turned this force on the Western Empire. Heather isn't able to do much to clarify the motive for the attacks. None of the grievances noted in the sources appear to be more than pretexts. Moreover, he kept alive a number of similar disputes with the Eastern Empire until settling them just before the invasion, apparently to secure his flank.
A Roman-Gothic coalition led by Aetius beat back Attila's invasion of Gaul in 451. Attila's invasion of Italy in 452 fizzled out under the stress of repeated sieges, harassment from Aetius' forces, and a flank attack into Hunnish territory by Marcian, the new Eastern Roman Emperor. Heather suggests that both campaigns were hindered by common logistic problems. The Huns lacked the wherewithal to supply large armies so far -- in the neighborhood of a thousand kilometers -- from their base in Central Europe. Hunger, disease, and the dispersal of forces to seek food and forage greatly diminished the Huns as a fighting force when they ventured so far afield.
Heather concludes that the Huns' invasions did not directly damage the Western Empire seriously enough to cause its fall, but they did prevent Aetius from containing the barbarians already within the Empire. North Africa, Spain, and Britain all slipped to barbarian control. Combined with the damage that had been done to the remaining provinces in Gaul and Italy, this perilously reduced the revenue of the Western Empire.
Monday, October 12, 2009
Peter Heather, The Fall of the Roman Empire: Chapter 6, "Out of Africa"
During this time, the Vandals and Alans crossed the Mediterranean to Africa and assaulted the rich Roman provinces near Carthage. The sources on the barbarian invaders thin out during the struggle to succeed Constantius, so all the details of why and how they got there are somewhat a matter of educated guesswork. Heather fills in a plausible story: seeing that Africa was relatively safe from Roman counterattack, the Vandals made the short passage to the far western provinces of Roman Africa, and then made a beeline for Carthage. The badly outnumbered and outclassed Roman forces in Africa were powerless to stop them.
At this point, Heather takes an excursus into a description of the importance of Roman North Africa, drawing on a range of sources. The remains of the port facilities of Carthage and Ostia bespeak the volume of shipping between North Africa and Rome. The ruins of the city of Carthage and provincial centers throughout its hinterland show how much the region profited from it. The trade was above all in staples like wheat and olive oil, but archaeology shows a variety of other goods, including wine and pottery, were also exported around the empire. Documentary evidence shows that Rome gave easy leases on public lands in North Africa, thus partially accounting for the size and profitability of agriculture there. The profitability of a larger range of cheap exports depended on low-cost transport, which Heather deduces was a result of the documented combination of compulsion and subsidy for the shipping profession.
Returning to Aetius, Heather lists the profusion of challenges facing the new Western leader -- besides the Vandals in Africa, the Suevi in Spain, the Visigoths and rebel local elements in Gaul, and various Germanic tribes along the frontier were all threatening the integrity of the empire -- and describes his response to them. Heather notes that the source material for the era is mostly bare chronicles, but for the European campaigns this is supplemented by a surviving palimpsest of parts of two panegyrics by Aetius' subordinate Merobaudes. From these sources, we know that Aetius secured two key alliances to deal with his challenges during the 430s. He got Constantinople to send an army to Carthage that compelled the Vandals to come to a deal for a peripheral slice of North Africa. He used an alliance with the Huns to subdue the rebels and contain the Visigoths in Gaul (Heather argues that he bought off the Huns with a slice of Pannonia to gain their help.) Finally, he was able to pressure the Suevi in Spain to come to an accommodation.
In 439, the Vandals under Geiseric took advantage of the opening provided by Aetius' preoccupation elsewhere to attack and capture Carthage and the key provinces of Proconsularis and Byzacena. A joint expedition with the Eastern Empire to reconquer the lost territories was called off in 441, and costly peace was made with the Vandals instead. Between the complete loss of revenue from the territory lost to the Vandals and greatly reduced take from what remained in Roman hands, a huge hole was opened in the Roman budget. Literary evidence reveals that this gap could not be filled even by eliminating all the perks granted to the privileged landowning class, and Heather infers that the army must have been drastically cut back as a result. Heather argues that there must have been a compelling reason to accept such a serious blow, and deduces from the sources that the reason was a new Hunnic threat that required the attention of the Empire in both East and West.